What are the common causes of persistent low grade fever. How can you identify symptoms associated with low grade fever. What treatment options are available for managing persistent low grade fever.

Understanding Low Grade Fever: Definition and Characteristics

A low grade fever is characterized by a slight elevation in body temperature, typically ranging between 100.5°F and 102.2°F (38.1°C to 39°C). While the average human body temperature is around 98.6°F (37°C), it’s important to note that this can fluctuate throughout the day. A fever is considered persistent when the elevated temperature persists for more than two weeks.

Fevers are often the body’s natural response to fighting off infections or other health issues. By raising the core temperature, the immune system becomes more effective at combating pathogens. However, when a low grade fever persists for an extended period, it may indicate an underlying condition that requires medical attention.

Recognizing Symptoms of Low Grade Fever

• Feeling warm to the touch
• Sweating or chills
• Mild headaches
• Muscle aches
• Slight dehydration
• General malaise or feeling unwell

It’s worth noting that some individuals may barely notice they have a low grade fever, while others might experience more pronounced symptoms. If you’re experiencing any of these symptoms persistently, it’s advisable to consult a healthcare professional for proper evaluation.

Common Causes of Persistent Low Grade Fever

Persistent low grade fever can stem from various underlying conditions. Understanding these potential causes can help in identifying the root of the problem and seeking appropriate treatment. Here are some common causes:

Respiratory Infections

Respiratory infections are a frequent cause of low grade fevers. Common culprits include the common cold, influenza, and other viral or bacterial infections affecting the respiratory system. These infections can lead to a prolonged low grade fever as the body works to eliminate the pathogen.

Symptoms often accompanying respiratory infections include:

• Coughing and sneezing
• Nasal congestion or runny nose
• Sore throat
• Fatigue and weakness
• Reduced appetite

In most cases, simple respiratory infections resolve on their own with rest and proper hydration. However, if symptoms persist or worsen, medical intervention may be necessary.

Urinary Tract Infections (UTIs)

Urinary tract infections can also cause persistent low grade fevers. UTIs occur when bacteria multiply in any part of the urinary system, including the bladder, urethra, ureters, or kidneys. Alongside a low grade fever, individuals with UTIs may experience:

• Abdominal pain or discomfort
• Burning sensation during urination
• Frequent urge to urinate
• Cloudy or dark urine
• Pelvic pressure

UTIs typically require antibiotic treatment. A healthcare provider can analyze a urine sample to determine the specific bacteria causing the infection and prescribe the most effective antibiotic.

Less Common Causes of Persistent Low Grade Fever

While respiratory infections and UTIs are common culprits, there are other, less frequent causes of persistent low grade fever that shouldn’t be overlooked:

Medication Side Effects

Certain medications can induce a low grade fever as a side effect. This reaction is typically short-lived and should subside within 72 hours of discontinuing the medication. It’s crucial to review the side effects of any new medications and consult with a healthcare provider or pharmacist if you suspect a drug-induced fever.

Chronic Stress

Interestingly, chronic stress can manifest physically as a low grade fever. This phenomenon, sometimes referred to as “psychogenic fever,” is more commonly observed in young women. Managing stress levels through relaxation techniques, regular exercise, and possibly professional counseling can help alleviate stress-induced fevers.

Rare but Serious Conditions

In rare instances, a persistent low grade fever with no apparent cause could be indicative of more serious conditions, including certain types of cancer. While uncommon, conditions such as leukemia, Hodgkin’s lymphoma, and non-Hodgkin’s lymphoma can present with a persistent low grade fever as an early symptom.

Other potential symptoms that may accompany cancer-related fevers include:

• Unexplained weight loss
• Chronic fatigue
• Night sweats
• Enlarged lymph nodes
• Frequent infections

It’s important to note that these symptoms are not exclusive to cancer and can be associated with various other conditions. If you’re experiencing a combination of these symptoms along with a persistent low grade fever, it’s crucial to seek medical evaluation for proper diagnosis and treatment.

Diagnosing the Cause of Persistent Low Grade Fever

Identifying the underlying cause of a persistent low grade fever often requires a comprehensive approach. Healthcare providers typically employ a combination of methods to arrive at an accurate diagnosis:

Medical History and Physical Examination

The diagnostic process usually begins with a thorough review of the patient’s medical history and a comprehensive physical examination. The healthcare provider will inquire about recent illnesses, travel history, medications, and any other symptoms accompanying the fever.

Laboratory Tests

Various laboratory tests may be ordered to help identify the cause of the fever. These can include:

• Complete blood count (CBC) to check for signs of infection or blood disorders
• Urinalysis to detect urinary tract infections
• Blood cultures to identify any bacteria in the bloodstream
• C-reactive protein (CRP) and erythrocyte sedimentation rate (ESR) tests to measure inflammation in the body

Imaging Studies

In some cases, imaging studies may be necessary to visualize internal structures and identify potential sources of infection or inflammation. These may include:

• Chest X-rays to check for respiratory infections or lung abnormalities
• Ultrasound scans to examine abdominal organs
• CT scans or MRIs for more detailed imaging of specific areas of concern

The combination of these diagnostic tools allows healthcare providers to pinpoint the underlying cause of a persistent low grade fever and develop an appropriate treatment plan.

Treatment Approaches for Persistent Low Grade Fever

The treatment of persistent low grade fever largely depends on its underlying cause. Once a diagnosis is established, healthcare providers can recommend targeted interventions. Here are some common treatment approaches:

Treating Underlying Infections

For bacterial infections such as UTIs or certain respiratory infections, antibiotics are typically prescribed. It’s crucial to complete the full course of antibiotics as directed, even if symptoms improve before the medication is finished.

Viral infections, on the other hand, don’t respond to antibiotics. Treatment for viral infections often focuses on managing symptoms and supporting the body’s natural healing processes. This may include:

• Rest and adequate hydration
• Over-the-counter pain relievers and fever reducers (e.g., acetaminophen or ibuprofen)
• Nasal decongestants or cough suppressants for respiratory symptoms

Addressing Medication-Induced Fevers

If a medication is suspected to be the cause of the persistent low grade fever, the healthcare provider may recommend discontinuing or changing the medication. It’s important never to stop prescribed medications without consulting a healthcare professional first.

Managing Stress-Related Fevers

For fevers associated with chronic stress, treatment may involve a multifaceted approach to stress management. This can include:

• Stress reduction techniques such as meditation or deep breathing exercises
• Regular physical activity
• Adequate sleep and nutrition
• Counseling or cognitive-behavioral therapy

In some cases, healthcare providers might recommend short-term use of anti-anxiety medications or antidepressants to help manage stress-related symptoms.

When to Seek Medical Attention for Persistent Low Grade Fever

While low grade fevers are often not cause for immediate concern, certain situations warrant prompt medical attention. It’s advisable to consult a healthcare provider if:

• The fever persists for more than two weeks without an apparent cause
• The fever is accompanied by severe symptoms such as difficulty breathing, chest pain, or severe headache
• You experience unexplained weight loss, night sweats, or swollen lymph nodes along with the fever
• The fever occurs in an infant younger than 3 months old
• You have a compromised immune system due to conditions like HIV or ongoing cancer treatment

Remember, early intervention can often lead to more effective treatment and better outcomes. Don’t hesitate to seek medical advice if you’re concerned about a persistent low grade fever or any accompanying symptoms.

Preventing Persistent Low Grade Fever

While it’s not always possible to prevent a persistent low grade fever, certain lifestyle choices and preventive measures can reduce the risk of developing conditions that may lead to prolonged fevers:

Boosting Immune Function

A strong immune system is your body’s first line of defense against infections that can cause fevers. To support optimal immune function:

• Maintain a balanced, nutrient-rich diet
• Engage in regular physical activity
• Get adequate sleep (7-9 hours for most adults)
• Manage stress through relaxation techniques or mindfulness practices
• Consider supplements like vitamin C, vitamin D, and zinc (after consulting with a healthcare provider)

Practicing Good Hygiene

Many infections that can lead to persistent low grade fevers are preventable through proper hygiene practices:

• Wash hands frequently with soap and water, especially before eating and after using the bathroom
• Avoid touching your face, particularly your mouth, nose, and eyes
• Cover your mouth and nose when coughing or sneezing
• Regularly clean and disinfect frequently-touched surfaces in your home and workspace

Staying Up-to-Date on Vaccinations

Vaccinations can prevent many infections that might lead to persistent fevers. Ensure you’re current on all recommended vaccinations, including annual flu shots and any travel-related immunizations.

Avoiding Environmental Toxins

Exposure to certain environmental toxins can potentially trigger inflammatory responses in the body, leading to low grade fevers. Minimize exposure to:

• Air pollution
• Secondhand smoke
• Harsh chemicals in cleaning products or personal care items
• Pesticides and herbicides

By incorporating these preventive measures into your daily routine, you can reduce the likelihood of developing conditions that may result in persistent low grade fevers. However, if you do experience a prolonged fever despite these efforts, don’t hesitate to seek medical advice for proper evaluation and treatment.

Persistent low grade fever: Causes and treatments

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Our team thoroughly researches and evaluates the recommendations we make on our site. To establish that the product manufacturers addressed safety and efficacy standards, we:

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• Fact-check all health claims: Do they align with the current body of scientific evidence?
• Assess the brand: Does it operate with integrity and adhere to industry best practices?

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Was this helpful?

The normal human body temperature is about 98.6°F, but it fluctuates throughout the day. A low grade fever is when the body temperature rises slightly, usually between about 100.5°F and 102.2°F.

The fever is persistent when the body temperature stays in this range for more than 2 weeks.

A fever is commonly a result of the body trying to fight off an infection or another illness. However, some cases are more difficult to diagnose and treat.

Continue reading to learn more about the symptoms, causes, and treatment of a persistent low grade fever.

Share on PinterestIf the body is fighting off an infection, a person may experience a persistent low grade fever.

Some people may hardly notice that they have a low grade fever. However, others may experience various symptoms, including:

• feeling warm to the touch
• sweating
• chills
• shivering
• headaches
• muscle aches
• dehydration
• a general feeling of being unwell

A persistent low grade fever is typically a sign that the body is fighting off an infection or another health issue and has raised its temperature to help these efforts.

These underlying issues can include:

Respiratory infections

Respiratory infections can cause a persistent low grade fever. Some of the most common respiratory infections, such as a cold or the flu, may cause a low grade fever that lasts for as long as the body takes to fight off the infection.

Other symptoms that may indicate a respiratory infection include:

• coughing
• sneezing
• a stuffy or runny nose
• a sore throat
• chills
• general fatigue
• lack of appetite

Many simple respiratory infections do not require treatment, and the symptoms will go away in time.

Urinary tract infections

A urinary tract infection (UTI) may also be the underlying cause of a low grade fever. A UTI is a bacterial infection that occurs when bacteria multiply anywhere in the urinary tract, which includes the bladder, urethra, kidneys, and ureters.

In addition to a low grade fever, the person may experience symptoms such as:

• pain in the abdomen
• a burning sensation while peeing
• frequent urination
• a constant urge to urinate
• dark urine

Most UTIs are simple to treat with antibiotics. The doctor may analyze a urine sample to determine the precise type of bacteria causing the infection to ensure that they prescribe the right treatment.

Other infections

Share on PinterestA person should talk to their doctor if they experience any symptoms of infection alongside a fever.

Almost any infection can cause a fever. A fever is one of the body’s natural responses to foreign invaders. The body may keep its core temperature elevated while it is fighting off the infection.

Other sources of infections that may cause a low grade fever include:

• food poisoning
• exposure to pathogens from livestock
• tuberculosis
• meningitis

Anyone experiencing symptoms of infection alongside a fever should see a doctor if the symptoms do not improve with rest and time.

Medications

Some medications can cause many different side effects, which may include a low grade fever. People can check the information on side effects and interactions that comes in the packaging or seek advice from a pharmacist.

As the author of a 2018 review notes, if the medication is the cause, the fever should go away very quickly — typically within 72 hours — once the person stops taking the drug.

Stress

Chronic stress may cause a low grade fever. A research paper from 2015 notes that a fever due to stress is most common in young women.

Reducing stress levels may resolve the fever in these cases.

Cancer

In rare cases, a persistent low grade fever with no known cause may be a sign of cancer.

A persistent fever can be a symptom of leukemia, Hodgkin disease, or non-Hodgkin lymphoma.

The person may also experience other symptoms of cancer, including:

• persistent fatigue
• weakness
• headaches
• infections
• lack of appetite
• excessive bruising or bleeding
• unexplained weight loss
• enlarged lymph nodes
• excessive sweating at night

Many of these symptoms are not unique to cancer, however.

Anyone who experiences these symptoms along with a low grade fever should see a doctor for a diagnosis.

Chronic disorders

Many other chronic disorders may cause symptoms such as a low grade fever, including:

• thromboembolic disease
• arthritis
• lupus
• gout
• thyroiditis
• serum sickness-like reactions
• serotonin syndrome
• neuroleptic malignant syndrome

Diagnosing a persistent low grade fever may involve several different tests to eliminate potential causes.

The doctor will generally carry out a physical examination and question the person regarding additional symptoms and whether they have any chronic conditions.

The doctor may also ask about any medications that the person takes so that they can eliminate them as a cause of the fever.

They may order blood tests, such as a complete blood count (CBC), to get an overview of the person’s health. The results may help them decide which other tests, if any, they need to order.

If the doctor suspects that the person has a UTI, they may ask them for a sample of their urine to test.

Share on PinterestOTC drugs may help treat a low grade fever at home.

Treatment for a persistent low grade fever will depend on the cause. For instance, minor infections may not need treatment at all, whereas issues such as cancer require extensive treatment.

To alleviate the symptoms of a low grade fever at home, a person can try over-the-counter (OTC) drugs, such as ibuprofen (Advil) or acetaminophen (Tylenol).

A fever can cause dehydration, so it is vital to drink plenty of water.

It is important to treat a low grade fever in children, who may be more sensitive to temperature changes. Using children’s versions of OTC drugs may help control the fever while waiting to see a doctor.

A persistent low grade fever is a sign of an underlying issue, such as a mild infection or chronic condition. The fever may persist while the person is fighting off the infection.

For the most part, persistent low grade fevers are not a cause for concern. However, it is important to monitor the fever to see whether it gets worse.

Anyone who is concerned about their symptoms or experiences a persistent low grade fever for more than 10 days should see a doctor.

SHOP FOR OTC DRUGS

The drugs listed in this article are available online:

• Ibuprofen
• Acetaminophen

Persistent low grade fever: Causes and treatments

We include products we think are useful for our readers. If you buy through links on this page, we may earn a small commission Here’s our process.

Medical News Today only shows you brands and products that we stand behind.

Our team thoroughly researches and evaluates the recommendations we make on our site. To establish that the product manufacturers addressed safety and efficacy standards, we:

• Evaluate ingredients and composition: Do they have the potential to cause harm?
• Fact-check all health claims: Do they align with the current body of scientific evidence?
• Assess the brand: Does it operate with integrity and adhere to industry best practices?

We do the research so you can find trusted products for your health and wellness.

Read more about our vetting process.

Was this helpful?

The normal human body temperature is about 98.6°F, but it fluctuates throughout the day. A low grade fever is when the body temperature rises slightly, usually between about 100.5°F and 102.2°F.

The fever is persistent when the body temperature stays in this range for more than 2 weeks.

A fever is commonly a result of the body trying to fight off an infection or another illness. However, some cases are more difficult to diagnose and treat.

Continue reading to learn more about the symptoms, causes, and treatment of a persistent low grade fever.

Share on PinterestIf the body is fighting off an infection, a person may experience a persistent low grade fever.

Some people may hardly notice that they have a low grade fever. However, others may experience various symptoms, including:

• feeling warm to the touch
• sweating
• chills
• shivering
• headaches
• muscle aches
• dehydration
• a general feeling of being unwell

A persistent low grade fever is typically a sign that the body is fighting off an infection or another health issue and has raised its temperature to help these efforts.

These underlying issues can include:

Respiratory infections

Respiratory infections can cause a persistent low grade fever. Some of the most common respiratory infections, such as a cold or the flu, may cause a low grade fever that lasts for as long as the body takes to fight off the infection.

Other symptoms that may indicate a respiratory infection include:

• coughing
• sneezing
• a stuffy or runny nose
• a sore throat
• chills
• general fatigue
• lack of appetite

Many simple respiratory infections do not require treatment, and the symptoms will go away in time.

Urinary tract infections

A urinary tract infection (UTI) may also be the underlying cause of a low grade fever. A UTI is a bacterial infection that occurs when bacteria multiply anywhere in the urinary tract, which includes the bladder, urethra, kidneys, and ureters.

In addition to a low grade fever, the person may experience symptoms such as:

• pain in the abdomen
• a burning sensation while peeing
• frequent urination
• a constant urge to urinate
• dark urine

Most UTIs are simple to treat with antibiotics. The doctor may analyze a urine sample to determine the precise type of bacteria causing the infection to ensure that they prescribe the right treatment.

Other infections

Share on PinterestA person should talk to their doctor if they experience any symptoms of infection alongside a fever.

Almost any infection can cause a fever. A fever is one of the body’s natural responses to foreign invaders. The body may keep its core temperature elevated while it is fighting off the infection.

Other sources of infections that may cause a low grade fever include:

• food poisoning
• exposure to pathogens from livestock
• tuberculosis
• meningitis

Anyone experiencing symptoms of infection alongside a fever should see a doctor if the symptoms do not improve with rest and time.

Medications

Some medications can cause many different side effects, which may include a low grade fever. People can check the information on side effects and interactions that comes in the packaging or seek advice from a pharmacist.

As the author of a 2018 review notes, if the medication is the cause, the fever should go away very quickly — typically within 72 hours — once the person stops taking the drug.

Stress

Chronic stress may cause a low grade fever. A research paper from 2015 notes that a fever due to stress is most common in young women.

Reducing stress levels may resolve the fever in these cases.

Cancer

In rare cases, a persistent low grade fever with no known cause may be a sign of cancer.

A persistent fever can be a symptom of leukemia, Hodgkin disease, or non-Hodgkin lymphoma.

The person may also experience other symptoms of cancer, including:

• persistent fatigue
• weakness
• headaches
• infections
• lack of appetite
• excessive bruising or bleeding
• unexplained weight loss
• enlarged lymph nodes
• excessive sweating at night

Many of these symptoms are not unique to cancer, however.

Anyone who experiences these symptoms along with a low grade fever should see a doctor for a diagnosis.

Chronic disorders

Many other chronic disorders may cause symptoms such as a low grade fever, including:

• thromboembolic disease
• arthritis
• lupus
• gout
• thyroiditis
• serum sickness-like reactions
• serotonin syndrome
• neuroleptic malignant syndrome

Diagnosing a persistent low grade fever may involve several different tests to eliminate potential causes.

The doctor will generally carry out a physical examination and question the person regarding additional symptoms and whether they have any chronic conditions.

The doctor may also ask about any medications that the person takes so that they can eliminate them as a cause of the fever.

They may order blood tests, such as a complete blood count (CBC), to get an overview of the person’s health. The results may help them decide which other tests, if any, they need to order.

If the doctor suspects that the person has a UTI, they may ask them for a sample of their urine to test.

Share on PinterestOTC drugs may help treat a low grade fever at home.

Treatment for a persistent low grade fever will depend on the cause. For instance, minor infections may not need treatment at all, whereas issues such as cancer require extensive treatment.

To alleviate the symptoms of a low grade fever at home, a person can try over-the-counter (OTC) drugs, such as ibuprofen (Advil) or acetaminophen (Tylenol).

A fever can cause dehydration, so it is vital to drink plenty of water.

It is important to treat a low grade fever in children, who may be more sensitive to temperature changes. Using children’s versions of OTC drugs may help control the fever while waiting to see a doctor.

A persistent low grade fever is a sign of an underlying issue, such as a mild infection or chronic condition. The fever may persist while the person is fighting off the infection.

For the most part, persistent low grade fevers are not a cause for concern. However, it is important to monitor the fever to see whether it gets worse.

Anyone who is concerned about their symptoms or experiences a persistent low grade fever for more than 10 days should see a doctor.

SHOP FOR OTC DRUGS

The drugs listed in this article are available online:

• Ibuprofen
• Acetaminophen

causes and what is subfebrile temperature

01/29/2020Updated 07/14/2021

The normal average body temperature is 36.6°C degrees Celsius. If the deviation on the temperature scale exceeds 0.5 ° C, in one direction or the other, this is not a critical indicator.

However, if the body temperature systematically rises to 37.1°C for no apparent reason, this is a reason to go to the doctor for a detailed clarification of the circumstances.

Usually, subfebrile temperature is called when the mark on the thermometer rises to 38 ° C and stays at this border. And often this is a temperature of 37.1 ° C.

In fact, an increase in body temperature does not occur from scratch.

The leading therapist of the R + Medical Network private clinic will tell you how to recognize subfebrile temperature and what are the most common reasons for this in medical practice.

Despite the fact that the causes of low-grade fever can be very different. Our doctors will still try to detail and convey the most important information to you so that you can pay attention to the hidden symptoms of the pathology in a timely manner and seek medical help. Usually, subfebrile temperature is called when the mark on the thermometer rises to 38 ° C and stays at this border. And often this is a temperature of 37.1 ° C.

What is subfebrile temperature?

Being informed is important. Especially when it comes to your own well-being or the health of loved ones.

So, body temperature can change throughout the day, depending on how you feel, climatic conditions, time of day. Therefore, deviations in the temperature regime of 0.5-1°C are not considered a pathology.

Therefore, if the temperature of 37.1°C lasts for a long period, then it returns to normal, and then rises again – sign up for a consultation with a specialist. Since the real problem can be detected only after a thorough diagnosis of the body.

Causes of subfebrile temperature can be identified using a complete blood count, fluorography, ultrasound, MRI, etc. Therefore, if the temperature of 37.1 ° C lasts for a long period, then returns to normal, and then rises again – sign up for a consultation with specialist. Since the real problem can be detected only after a thorough diagnosis of the body.

An increase in temperature is most often an immune reaction to an inflammatory process in the body or an infection.

Thus, the immune system is actively involved in the fight against the “enemy” and signals that a failure has occurred. A virus or a focus of the inflammatory process has appeared in the body.

Therefore, it is very important not to delay the visit to the doctor, but to do it as soon as possible at the first signs of the disease. After all, any disease is always easier to prevent than to treat in the last stages of pathology.

The main causes of subfebrile temperature

The most common reasons why the body can give temperature alarms are:

1. Anemia.
2. Intestinal parasites
3. Tuberculosis.
4. AIDS/HIV.
5. Toxoplasmosis, sepsis.
6. Oncological diseases.
7. Diseases of the thyroid gland.
8. Viral hepatitis, intestinal infection.
9. Autoimmune diseases (allergies, arthritis, ulcerative colitis, rheumatism).
10. Hormonal imbalance (in pregnant women, as a variant of the norm).

By the way, the causes of a temperature of 37 ° C in women may well lie in the natural ovulation period, so if you are approaching or having your period, you should not worry about this.

Subfebrile temperature in a child. What to do?

If a subfebrile temperature is observed in a teenager or a small child, first and foremost, make sure that this is not a “temperature tail” (the result of a cold or a viral illness).

Many parents start to panic when their child has a temperature of 37°C, but they forget that the child has just recently had a cold, flu or a sore throat.

After ARVI, a child may have subfebrile temperature for 5-14 days. And that would be the norm.

However, if the child has a subfebrile temperature and cannot explain his condition to you, it is important to contact a competent doctor who will diagnose and determine the exact cause of the temperature increase for further correct treatment.

Normal temperature range for people of different ages

These temperature ranges can be observed in most people of all ages. Balancing these boundaries remains the norm if the temperature changes under the influence of external factors or characteristics of the organism (this should be clarified with the doctor).

However, if low-grade fever causes discomfort or is accompanied by symptoms of an unknown etiology, your task is to find the cause as soon as possible and begin effective treatment.

R+Medical Network premium class private clinic in Goloseevsky and Pechersky districts of Kiev is distinguished by the fact that we provide patients with an integrated approach to both diagnosis and treatment of diseases.

We are not satisfied with a single indicator of tests, we are interested in a detailed analysis of the root cause of subfebrile temperature and its immediate elimination .

And this is achieved by specialists at the highest level, since all doctors of the R + Medical Network clinic are of the highest category, with extensive international work experience and personal values ​​that allow them to always cope with a situation of any complexity.

Therefore, if you feel something is wrong with your health, do not hesitate – seek qualified medical care at a private R+Medical Network clinic. And this is achieved by specialists at the highest level, since all doctors of the R + Medical Network clinic are of the highest category, with extensive international work experience and personal values ​​that allow them to always cope with a situation of any complexity.

In the “one day” mode, you can find all the answers to your questions at an affordable price, without a queue and additional movements.

Make an appointment with a therapist

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Author:

Ganzha Tatyana Valerievna

Therapist, allergist, first category, Experience 15 years

Other blog entries

Subfebrile temperature – what is dangerous? What to do? Where to go in Kazan? MC Health Formula

36.6 is not a constant body temperature of a healthy person, if you monitor it during the day, then this value will fluctuate slightly. The lowest result, about 36 degrees, will be at the time of morning sleep. If a person is hot after exercise, the temperature may rise slightly

Body temperature is affected by heat, humidity, too warm clothes. In women, there is a slight jump in temperature (by half a degree) on certain days of the menstrual cycle. But it will be a one-time increase. A cause for concern may be an increase in temperature from 37.2 to 37.9 for a period of more than a month – this is subfebrile temperature.

If subfebrile temperature lasts for more than two weeks, and it is accompanied by symptoms such as fatigue, poor sleep, shortness of breath, then the therapist should not be postponed. Often, low-grade fever signals a malfunction in the body when other symptoms have not yet appeared.

Picture taken from stock.adobe.com in the free section stock.adobe.com/en/free

Causes of subfebrile temperature

There are diseases that provoke a slight increase in temperature over a long period.

• Chronic infectious process (tuberculosis, chronic diseases of the nasopharynx, pancreatitis, cholecystitis, prostatitis, adnexitis, bacterial endocarditis, chlamydia, syphilis, HIV infection).
• Inflammatory process
• Oncology
• Autoimmune diseases (rheumatism, ulcerative colitis, drug allergy, arthritis, postinfarction syndrome)
• Parasites
• Pathologies of the endocrine system (thyrotoxicosis, severe menopause)
• Thermoneurosis (vegetative dysfunction affecting heat transfer)

If the cause of fever is an infection, then it is characterized by:

• decrease after taking antipyretic;
• poor tolerance;
• there are fluctuations throughout the day.

But there are reasons when a healthy person has a subfebrile temperature:

• overheated
• under stress
• when taking certain drugs
• hereditary factor when a child is born and lives with a fever
• with activation of the hypothalamus
• during pregnancy
• before menses.

Such a temperature is not amenable to the action of antipyretic drugs, is easily tolerated and does not have pronounced daily fluctuations.

Examination will help to find out the cause.

Analyzes and studies at subfebrile temperature.

You should always start with a general practitioner. It is the general practitioner who will refer you for primary tests, and then, after the results obtained, will recommend the appointment of a narrow specialist: an endocrinologist, a cardiologist, a gynecologist, an otolaryngologist, an infectious disease specialist.

Fever for more than two weeks?

Need to submit:

• General analysis of blood and urine (increased leukocytosis, protein in the urine)
• Blood for hepatitis B and C, HIV and syphilis
• Sputum culture for Mycobacterium tuberculosis
• Urine culture (genital infections) and blood culture (sepsis).

Do:

• Chest x-ray (tuberculosis, lung abscess)
• Electrocardiogram (bacterial endocarditis)
• Pelvic ultrasound (inflammatory diseases)
• Abdominal ultrasound

If, after the results obtained, the cause is not established, then the patient is sent to take a blood test:

• for hormones
• for rheumatoid factor
• for tumor markers.