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Early blood clot symptoms: Know the Risks, Signs & Symptoms of Blood Clots

Early stage symptoms and more

Early blood clot symptoms can vary depending on location, but some common signs include pain, swelling, warmth, and tenderness in the affected area.

Blood clots can be a serious medical condition. They can block blood flow to essential organs, such as the brain and heart, leading to stroke and heart attack.

This article discusses the early symptoms of blood clots in different parts of the body.

Blood clots can occur anywhere in the body. Some common areas include the legs, lungs, and brain.

The early symptoms of a blood clot can vary depending on the size of the clot and its location, but some general symptoms include:

  • pain
  • swelling
  • warmth
  • tenderness

The following sections take a closer look at the early symptoms of blood clots in the lungs, legs, and other body parts.

A blood clot that travels to the lungs is called a pulmonary embolism (PE). It can be a life threatening condition.

Some early symptoms of PE include:

  • shortness of breath
  • chest pain
  • coughing up blood
  • rapid heartbeat
  • feeling lightheaded or dizzy
  • sweating

A blood clot in the leg or arm is called deep vein thrombosis (DVT). Some people with DVT may not experience any symptoms, but others may notice:

  • pain
  • swelling
  • warmth
  • tenderness
  • crepitus (a crackling or popping sensation in the affected area)

A person with DVT and PE has venous thromboembolism (VTE). According to the Centers for Disease Control and Prevention (CDC), VTE affects as many as 900,000 people in the United States each year.

A blood clot in the brain is called an ischemic stroke.

According to the American Heart Association, around 87% of strokes are ischemic strokes.

Early symptoms of an ischemic stroke include:

  • sudden numbness or weakness in the face, arm, or leg
  • confusion or trouble speaking
  • difficulty seeing in one or both eyes
  • sudden severe headache
  • dizziness or loss of balance
  • difficulty walking or coordinating movements

A stroke is a medical emergency. Anyone experiencing these symptoms should seek immediate medical attention.

Learn how to recognize a stroke.

A blood clot in the heart can lead to a heart attack.

Early symptoms of a heart attack include:

  • chest pain or discomfort
  • shortness of breath
  • discomfort or pain in the upper body, such as the arms, back, neck, jaw, or stomach
  • nausea
  • lightheadedness

People with any of these symptoms should seek immediate emergency medical attention.

Learn how to recognize the signs of a heart attack and what to do.

A blood clot in the kidney is called renal artery thrombosis. This rare but serious condition can lead to kidney damage or failure.

In some cases, a person with renal artery thrombosis may not experience any symptoms, but others may notice:

  • flank or abdominal pain
  • hematuria (blood in the urine)
  • fever
  • nausea and vomiting

A blood clot in the neck, also known as carotid artery thrombosis, can lead to stroke, heart attack, or death.

Early symptoms of carotid artery thrombosis include:

  • weakness or numbness on one side of the body
  • sudden difficulty speaking or understanding speech
  • vision issues, such as blurry vision or double vision
  • sudden severe headache
  • seizures

People with any of these symptoms should seek immediate emergency medical attention.

People experiencing any of the above symptoms should seek medical attention immediately, especially if they are sudden or severe.

Blood clots can be a serious health concern, and early detection and treatment are crucial.

The outlook for individuals with blood clots depends on various factors, including the size, location, and promptness of treatment.

Small blood clots that form in the veins of the legs typically respond well to treatment with blood thinners and compression stockings. However, if a DVT clot breaks off and travels to the lungs, it can result in PE, which is a medical emergency.

Large blood clots in the heart or brain can also have serious implications. These clots can cause heart attacks, strokes, and other serious health concerns.

Below are some answers to common questions about blood clots.

What is the most common symptom of a blood clot?

The most common symptom of a blood clot is pain. Other common symptoms include swelling, warmth, and tenderness in the affected area.

What can be mistaken for a blood clot?

Several conditions can mimic the symptoms of a blood clot, including muscle strain, cellulitis (a bacterial infection), and Baker’s cysts.

Blood clots can be a serious health concern and can occur in different parts of the body, including the legs, lungs, kidneys, and neck.

Knowing the early symptoms of a blood clot can help with early detection and treatment.

Early Stage Blood Clots Symptoms In The Heart

Blood clots are a potentially dangerous condition that can form in the veins or arteries of the body. While blood clots are a natural response to injury, they can cause life-threatening complications if they occur in critical areas of the body, such as the heart, lungs, or brain. 

For instance, blood clots in the heart can result in cardiac arrest and even heart failure. Understanding the symptoms and risks of blood clots can help individuals take appropriate steps to prevent or manage this condition. Early detection gives you time to consult a heart specialist and get the necessary treatment.

Risks Factors of Blood Clots

Several factors can increase an individual’s risk of developing a blood clot. Some of the most common risk factors include:

  • Age: As individuals age, their risk of developing blood clots increases.
  • Family history: Individuals with a family history of blood clots are more likely to develop the condition themselves.
  • Sedentary lifestyle: Being inactive for extended periods, such as sitting for long periods, can exacerbate the risk of blood clots.
  • Obesity: Being overweight or obese can increase the risk of blood clots.
  • Smoking: Smoking can damage the lining of blood vessels, making you more vulnerable to blood clots.
  • Medical conditions: Certain medical conditions, such as cancer, diabetes, and heart disease, can put you at risk of blood clots.
  • Medications: Certain medications, such as birth control pills or hormone replacement therapy, can result in blood clots.
  • Surgery: Surgery, particularly if it involves the legs or pelvis, can increase the risk of blood clots.

Different Body Parts Where Blood Clots Can Form

Blood clots can form in any part of the body, but they are most common in the deep veins of the legs (a condition known as deep vein thrombosis). 

Other areas where blood clots can form include:

  • Lungs: When a blood clot travels to the lungs, it can cause a potentially life-threatening condition called pulmonary embolism.
  • Brain: Blood clots forming in the brain can cause a stroke, leading to long-term disability or death.
  • Heart: Blood clots that form in the coronary arteries can cause a heart attack.
  • Abdomen: Blood clots in the mesenteric arteries, which supply blood to the intestines, can cause a severe condition called mesenteric thrombosis.
  • Arms: Blood clots can form in the veins of the arms, causing a condition called thrombophlebitis.

Blood Clots in the Heart: A Closer Look

When there is a blood clot in the heart, it can block the flow of blood to the cardiac muscles, causing a heart attack. The heart muscle requires a constant supply of oxygen-rich blood to function properly. When that is interrupted, the heart muscle can become damaged or die. The extent of the damage depends on the size and location of the blood clot and how long it takes to receive heart disease treatment.

If you don’t receive prompt treatment from a heart disease specialist, it can lead to serious complications, such as heart failure or abnormal heart rhythms. In some cases, the blood clot can break loose and travel to other parts of the body, causing a stroke or pulmonary embolism.

Signs of Blood Clots in the Heart

The devastating consequences discussed in the previous section make it crucial to recognize the early symptoms of a blood clot in the heart and seek medical attention immediately if you experience them. 

Early diagnosis and treatment can help prevent serious complications and improve outcomes. Treatment for a blood clot in the heart may include medications to dissolve or prevent blood clots, procedures to remove the clot, or surgery to restore blood flow to the heart muscle. Sometimes, angioplasty in the heart may also be performed to ensure proper blood flow to cardiac chambers.

Early-stage blood clot symptoms in the heart can include:

  • Chest pain or discomfort that may feel like pressure or squeezing
  • Pain that spreads to the shoulders, arms, neck, jaw, or back
  • Shortness of breath
  • Sweating
  • Nausea or vomiting
  • Lightheadedness or dizziness
  • Fatigue or weakness

Remember that not everyone experiences the same symptoms during a heart attack. Some people may not have any symptoms at all. Additionally, women, older adults, and people with diabetes may experience different or less typical symptoms than those listed above. Hence, it is always a good idea to visit a heart specialist for regular health checkups and screenings.

In Conclusion

Blood clots are a serious medical condition that can cause significant harm to an individual’s health. Understanding the risk factors, symptoms, and potential complications of blood clots is critical for early diagnosis and treatment. While blood clots can form in different areas of the body, early-stage blood clot symptoms in the heart, such as chest pain or discomfort, shortness of breath, and sweating, should be taken seriously and addressed promptly. 

By adopting healthy lifestyle habits and seeking medical attention from a heart disease specialist, individuals can reduce their risk of blood clots and improve their overall health and well-being.

Dr. C Raghu is an eminent cardiologist in Hyderabad and one of the best-known TAVR experts in India. If you or anyone you know has been diagnosed with a cardiovascular ailment or is at risk, feel free to reach out to Dr. Raghu today.

Early-Stage Blood Clot Symptoms in the Heart
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The first symptoms of thromboembolism and how to recognize it


  • 1 The first signs of thromboembolism: how to recognize a dangerous disease
    • 1.1 The first signs of thromboembolism
    • 1.2 What is thromboembolism?
    • 1.3 How a blood clot appears
    • 1.4 Who is at risk of thromboembolism
    • 1.5 Why is it important to recognize the first symptoms of thromboembolism?
    • 1.6 Leg pain and swelling
    • 1.7 Stock-Very syndrome
    • 1.8 Absence of pulse and feeling in a thromboembolism
    • 1.9 Shortness of breath and chest pain as a sign of a thromboembolism
    • 1. 10 Vision problems and dizziness in a thromboembolism
    • 1.11 When to see a doctor if a thromboembolism is suspected
    • 1.12 Related videos:
    • 1.13 Q&A:
        • What are the first symptoms of thromboembolism?
        • What are the risk factors for thromboembolism?
        • Can thromboembolism be self-diagnosed?
        • How is thromboembolism diagnosed?
        • What can lead to complications from thromboembolism?
        • How is thromboembolism treated?

Thromboembolism is a condition where blood circulation in the body is disturbed due to clogging of blood vessels with blood clots. The article describes the first symptoms that may indicate the presence of thromboembolism and tells which risk groups are susceptible to it.

A thromboembolism is a condition in which a blood clot (thrombus) blocks a blood vessel, preventing the body from getting enough blood and oxygen. Although thromboembolism can occur anywhere there are blood vessels, most of the time it occurs in the lower extremities.

Attention to the first signs of thromboembolism can help to recognize it early and prevent serious consequences. However, at an early stage, the symptoms of thromboembolism may not be obvious and often present similar to those of other diseases.

In this article we look at the first symptoms of thromboembolism, how it can be recognized and what precautions can be taken to avoid this condition.

Early signs of thromboembolism

Thromboembolism is a condition where a clot (blood clot) forms in a blood vessel and then breaks off, blocking another vessel in the body. This can lead to serious consequences such as a stroke or heart attack. Therefore, it is very important to know how to recognize the first symptoms of thromboembolism.

The first signs of thromboembolism may vary depending on which vessel is blocked. However, in general, the following symptoms may indicate the development of thromboembolism:

  • Pain in the legs, arms, or elsewhere in the body
  • Edema in the area of ​​circulatory obstruction
  • Redness or 90 070 blanching difficult skin zone
  • Elevated skin temperature in the area of ​​the blocked vessel
  • Burning sensation or tingling in the area of ​​the blocked vessel
  • Feeling of pain when breathing if the lungs are affected
  • Dizziness , 9007 0 loss of coordination movements, loss of consciousness if the brain is affected

No needing to worry excessively if you notice one or more of your symptoms. But if you notice 2 or more symptoms in yourself, it is recommended that you contact your doctor to assess the risk of developing thromboembolism and further treatment.

What is thromboembolism?

Thromboembolism is a disease in which blood in the vessels due to the formation of blood clots can lead to blockage of blood vessels. As a result, there is a violation of blood circulation in the body, which can lead to serious complications.

Thromboembolism can occur anywhere in the body, but most commonly occurs in the blood vessels of the lower extremities, lungs, and brain. It can occur both after injuries, operations, severe bruises, and as a result of metabolic disorders, hormonal disorders, cardiac arrhythmia and other diseases.

Recognizing thromboembolism can be difficult right away, but if you experience the first symptoms, you should immediately contact your doctor and start treatment. It should be remembered that neglecting the symptoms can lead to serious complications, and in some cases even be fatal.

How a blood clot appears

A blood clot is a collection of blood cells and proteins that forms in a blood vessel. It can occur when the natural process of hematopoiesis is disrupted and blood flow slows down. Also, a blood clot can form as a result of a vessel injury or in the presence of diseases.

Some medical conditions may also increase the risk of blood clots. This may be thrombocytopenia, where the number of platelets is not normal, and vascular stenosis, in which there is a narrowing of their lumen. In addition, certain medications and dietary supplements can also lead to blood clots.

It is important to understand that a blood clot can occur in any part of the body. It can block blood flow to the brain or heart, which can lead to a stroke or heart attack. And if a blood clot cuts off a blood vessel, then part of the tissue will be left without oxygen and nutrition, which can lead to necrosis.

Who is at risk for thromboembolism

Anyone can experience thromboembolism, but certain populations are at greater risk for the condition.

  1. Older people over 40 years of age;
  2. People who are sedentary and do not exercise;
  3. Obese people;
  4. People who smoke or drink alcohol;
  5. People who have a hereditary predisposition to thromboembolism;
  6. Women taking contraceptives or undergoing hormonal treatment;
  7. Pregnant women or women in childbirth.

If you belong to one of these risk groups, it is important to be under constant medical supervision and monitor your health.

Why is it important to recognize the first symptoms of thromboembolism?

Thromboembolism is a serious disease that can lead to complications, even death. Therefore, if you notice the first symptoms of thromboembolism, it is important to take immediate action and see a doctor.

Missing the first symptoms of thromboembolism can lead to serious complications and reduce the chances of full recovery.

  • Signs of thromboembolism . Severe chest pain, unusual tiredness, shortness of breath or rapid breathing, heart rhythm disturbances, pain in the legs or arms, fast or rapid heartbeat – all of these signs can be one of the first symptoms of thromboembolism, and they should be addressed.
  • Medical emergency . If you notice symptoms of thromboembolism, do not put off a visit to the doctor. Diagnosis and treatment of thromboembolism should be carried out in a general manner, and urgent medical intervention can save your life.

Leg pain and swelling

Symptoms of thromboembolism. Thromboembolism is a dangerous condition that results from the formation of blood clots in the blood vessels. One of the first signs of thrombosis of the lower extremities is pain in the legs. They may present as a feeling of heaviness or fatigue, but they can also be very strong and abrupt.

Causes of pain. The most common pain in the legs with vascular thrombosis is accompanied by swelling and redness of the skin. This is due to the fact that the normal blood flow is disturbed, and the blood begins to stagnate in the affected area. As a result, pressure on the vessels and tissues increases, which causes pain.

How to recognize thrombosis. If you notice pain in your legs, swelling or redness of the skin, pay attention to other symptoms of thrombosis. Some of them include lack of pulsation in the peripheral arteries, impaired sensation, and prolonged pain in the affected area. You may also experience fever, nausea and vomiting, weakness and dizziness. If you notice these symptoms, seek medical attention immediately.

  • To prevent blood clots, you need to exercise regularly, control cholesterol and blood glucose levels.
  • It is also important to see your doctor early if you have a predisposition to thromboembolism, or if you see signs of its development.
  • Never put off going to the doctor if you notice suspicious symptoms. Thromboembolism can be life-threatening if not detected and treated promptly.

Stock-Very syndrome

Stock-Very syndrome is a rare form of thromboembolism that can lead to rapid death of the patient. It results from blockage of a pulmonary artery by a thrombus and is the most severe form of pulmonary thromboembolism.

To recognize Stock-Very syndrome, the doctor uses an x-ray examination of the lungs, spirometry, and magnetic resonance angiography. If the diagnosis of the syndrome occurred at the very beginning, then blood thinners and timely surgical intervention can save the patient’s life.

  • Excessive exercise and low mobility may be risk factors.
  • Frequent computer games and long periods of sitting can lead to thrombosis.
  • Doctors recommend regular foot massage and compression stockings.

In the event of the first symptoms of thromboembolism, it is necessary to consult a doctor, as timely treatment can save the patient’s life and prevent possible complications.

Absence of pulse and feeling in thromboembolism

One of the first symptoms of thromboembolism may be the absence of pulse and feeling in the affected limb. The reason for this is the blockage of large arteries by a thrombus or embolus.

It is important to pay attention to such symptoms and seek immediate medical attention. Immediate diagnosis and treatment of thromboembolism can save lives and prevent complications.

Shortness of breath and chest pain as signs of thromboembolism

Thromboembolism is a disease that is caused by the formation of blood clots in the bloodstream, which can then break off and block blood flow in the body. One of the first signs of thromboembolism may be the appearance of shortness of breath – shortness of breath when blood stops flowing freely into the lungs.

In addition, patients with thromboembolism often experience chest pain that can be described as a squeezing or pressing sensation. This is due to insufficient blood flow to the heart, which can lead to disruption of its work.

Seek medical attention if you notice symptoms of thromboembolism. Do not ignore the symptoms, as thromboembolism can lead to serious complications and even death. The doctor will conduct the necessary treatment and help prevent possible complications.

  • Shortness of breath and chest pain are the first signs of thromboembolism;
  • Symptoms associated with impaired blood flow in the body;
  • Seek medical attention if symptoms occur.

Vision problems and dizziness due to thromboembolism

When a thromboembolism develops, different symptoms may occur depending on the location of the blood clot. One of the possible first symptoms is a vision problem. A person may notice that his visual acuity has decreased, double vision has appeared, sensitivity to bright light has arisen, and a narrowing of the field of vision may occur.

In addition, dizziness is often observed with thromboembolism. A person may experience a feeling of uncertainty in space and a slight swaying gait. Problems with coordination of movement can be especially pronounced when walking up stairs or on uneven surfaces.

It is important to understand that vision problems and dizziness can be the first signs of developing thromboembolism, so you need to see a doctor for diagnosis and treatment.

When to see a doctor if you suspect a thromboembolism

Thromboembolism is a serious condition that requires immediate medical attention. Its symptoms can manifest in different ways and in varying degrees of severity, but any suspicion of thromboembolism requires immediate medical attention.

If you experience any of the following symptoms associated with thromboembolism, seek medical attention immediately:

  • Severe pain in the legs or arms that does not go away
  • Easy fatigue and weakness
  • Shortness of breath
  • Swelling of a vein in the legs 9000 8
  • Feeling of numbness or tingling in legs
  • Several hours of severe chest pain

It is also worth seeing a doctor if you have a number of risk factors for thromboembolism. These factors include:

  • Obesity
  • Cardiovascular disease
  • Trauma followed by immobilization
  • Surgery
  • Certain hormonal drugs

Remember that immediate medical attention can save life in case of thromboembolism.

Related videos:


What are the first symptoms of thromboembolism?

The first symptoms may vary depending on where the blood clot formed and where it went. Some of these may include pain in the legs, swelling, numbness, weakness or tingling in the limbs, burning or itching, burning skin, chest pain, shortness of breath, etc.

What are the possible risk factors for thromboembolism?

Risk factors may include the presence of other diseases such as cancer, cardiovascular disease, venous disease, Crohn’s disease, pregnancy, stroke, trauma and surgery, prolonged inactivity, and family history.

Is it possible to self-diagnose thromboembolism?

If you develop symptoms associated with thromboembolism, you should contact your doctor immediately. Self-recognition of this disease can be difficult, as the symptoms are not always pronounced and may vary depending on the type of thromboembolism.

How is thromboembolism diagnosed?

A combination of methods may be used to diagnose thromboembolism, including ultrasound, x-rays, tomography, Doppler ultrasonography, blood toxicology tests, and others. The doctor may also perform a physical examination and ask a series of questions about symptoms and medical history.

What can lead to complications from thromboembolism?

Delayed treatment of thromboembolism can lead to serious complications such as pulmonary hypertension, asthma, heart attack, stroke, cardiac arrest, and even death.

How is thromboembolism treated?

Treatment of thromboembolism may include anticoagulants, thrombolytics, blood circulation drugs, and medical devices such as compression stockings and leg pumps. In some cases, surgery may be required.

What symptoms can be used to diagnose a blood clot?

Thrombus formation is often associated with life-threatening conditions. Until the 19th century, this pathology was a real mystery to doctors. And only thanks to the German pathologist Rudolf Virchow the world learned about the causes and symptoms of blood clots, which helped to find the right methods of treating the disease.

What is a thrombus?

Blood clots formed inside blood vessels are called thrombi in medicine. Why are they formed? Various biological systems operate in the human body. One of them is the hemostasis system.

It simultaneously performs several important functions:

  • provides a liquid aggregate state of the blood,
  • forms blood clots in case of injury or damage,
  • dissolves blood clots.

In case of any bleeding that occurs in the body (wounds, cuts), the process of thrombus formation starts. Platelets (blood cells) accumulate around the wound and stick together. And in order for the resulting conglomerate to be strong, platelet complexes are covered with fibrin (special protein filaments). The formed blood clot completely closes the wound. This response protects the person from massive blood loss. In a healthy body, excess blood clots simply dissolve.

However, sometimes, under the influence of certain factors, blood clots can form inside intact vessels. In this case, they threaten with a heart attack, stroke, ischemic damage to organs, and the development of gangrene of the extremities.

Causes of thrombus formation

The main stages of thrombus formation inside the human body were found by Virchow. They were allocated three stages, and they are relevant to this day.

The causes of thrombus formation are as follows:

  1. pathological condition of the vascular wall, which may be the result of injuries, infections or surgical procedures,
  2. slowing of the blood supply, in which clots often form in those areas where blood stagnation is observed, which is inherent in people leading a sedentary lifestyle,
  3. violation of the composition of the blood; with an increase in blood viscosity, the risk of blood clots increases, which can develop due to genetic disorders or due to autoimmune diseases.

Depending on the location, blood clots can be venous or arterial. The former are often formed as a result of surgery, chemotherapy or after radiation therapy. The cause of arterial blood clots is usually the presence of cholesterol plaques in the vessels.

Predisposing factors

Certain conditions must exist in the body to start the process of thrombus formation. Factors contributing to the development of blood clots are numerous. Among them, age, chronic diseases and even an unhealthy lifestyle can be distinguished. So what causes blood clots?

The risk of developing blood clots is increased by the following factors: 005 over 40 years of age,

  • pregnancy,
  • bed mode due to injuries or serious illnesses (more than 3 days),
  • surgeries,
  • long journeys accompanied by immobility (flying by plane, traveling in a car, bus),
  • taking hormonal drugs and oral contraceptives,
  • autoimmune diseases,
  • smoking,
  • oncological diseases,
  • varicose veins,
  • severe lung disease,
  • 90 005 heart failure,

  • history of ischemic stroke,
  • strict diets,
  • chronic or acute infections,
  • genetic predisposition,
  • atherosclerosis,
  • stress, depression.
  • Why are blood clots dangerous?

    If blood clots close wounds, then these processes are vital for the body. However, sometimes there are disorders in which platelets begin to stick together without any interference or bleeding. In this case, the formation of blood clots is a serious threat.

    • If the clot blocks the blood vessels in the brain, an ischemic stroke may develop.
    • When penetrating into the vessels of the heart, a thrombus threatens the development of myocardial infarction.
    • Blockage of a pulmonary vessel leads to a state of embolism.
    • Blood clots that close the vessels of the extremities can cause the development of gangrene.

    To save a person’s life, an ambulance must be called immediately. Doctors inject drugs into the body that can dissolve a blood clot. In the event of a stroke, the next 3.5 hours are crucial in terms of recovery.

    How to detect a blood clot?

    The formation of a blood clot inside a vessel is called thrombosis. Basically, blood clots form inside the veins of the upper and lower extremities, from where they are transferred by blood flow to various parts of the body. Venous thrombosis may involve deep or superficial veins. Deep vein thrombosis is considered the most dangerous. This pathology can be completely asymptomatic and nothing bothers the patient.

    To avoid unpleasant consequences, you need to understand what signs the body uses to signal the formation of a blood clot inside itself.

    Signs of pathology

    The following symptoms may indicate the presence of blood clots inside the body:

    1. Chronic fatigue. This symptom often indicates the presence of abnormalities in the body. If fatigue persists for a long time, then there is a possibility of thrombosis.
    2. Swelling and redness of the limb. If there is a blood clot in the upper or lower limb, it may become edematous in this area due to poor blood supply. The edematous area may turn red or acquire a bluish-purple hue. At times it is warm to the touch and may itch. These are dangerous symptoms that may indicate a separation of a blood clot.
    3. Pain in limbs. If the pain in the arms and legs is not associated with an injury, then one must be attentive to the condition of one’s own limbs. You need to walk a little, bend your legs (arms) several times, squeeze the damaged areas. If these activities aggravate pain, then deep vein thrombosis is most likely present.
    4. Difficulty breathing. Feeling short of breath is a rather unpleasant symptom. Difficulty breathing may indicate the presence of a blood clot inside the lungs, and the cough associated with it may indicate a blockage of the artery (doctors call this pathology pulmonary embolism), which is a particularly life-threatening condition. For this reason, with the development of the first signs of pathology, it is necessary to call an ambulance.
    5. Rapid heartbeat. This symptom often accompanies difficulty breathing. It is also a signal of the body about the presence of a blood clot in the lungs.
    6. Chest pain. If it is associated with difficulty breathing, it may indicate a pulmonary embolism. However, sometimes chest pains indicate the presence of a blood clot in the heart, which can lead to a heart attack.
    7. Severe sweating, fever. These symptoms are indicative of renal vascular thrombosis. Blood clots interfere with the excretion of waste products from the body, which causes increased sweating and fever. In advanced cases, persistent hypertension develops. In the future, the development of renal failure is possible.
    8. Severe headache . In the presence of a blood clot in the brain, an intense headache begins, which may be accompanied by dizziness, and possibly loss of consciousness.