Pinworm infection – Symptoms & causes

Overview

Pinworm infection is the most common type of intestinal worm infection in the United States and one of the most common worldwide. Pinworms are thin and white, measuring about 1/4 to 1/2 inch (about 6 to 13 millimeters) in length.

Pinworm

An adult pinworm generally is 1/4 to 1/2 inch (about 6 to 13 millimeters) in length. The most common symptom of infection is anal itching, particularly at night, as worms migrate to the host’s anal area to lay their eggs.

While the infected person sleeps, female pinworms lay thousands of eggs in the folds of skin surrounding the anus. Most people infected with pinworms have no symptoms, but some people experience anal itching and restless sleep.

Pinworm infection occurs most often in school-age children, and the tiny (microscopic) eggs are easily spread from child to child. Treatment involves oral drugs that kill the pinworms and thorough washing of pajamas, bedding and underwear. For best results, the entire family should be treated.

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Symptoms

Symptoms of pinworm infection may include:

• Itching of the anal or vaginal area
• Insomnia, irritability, teeth grinding and restlessness
• Occasional stomach pain and nausea

Pinworms often cause no symptoms.

When to see a doctor

Consult your doctor if you have severe anal itching, especially at night.

Causes

Accidentally swallowing or breathing in pinworm eggs causes a pinworm infection. The tiny (microscopic) eggs can be carried to your mouth by contaminated food, drink or your fingers. Once swallowed, the eggs hatch in the intestines and mature into adult worms within a few weeks.

Female pinworms move to the anal area to lay their eggs, which often results in anal itching. When you scratch the itchy area, the eggs cling to your fingers and get under your fingernails. The eggs then get transferred to other surfaces, such as toys, bedding or toilet seats. The eggs can also be transferred from contaminated fingers to food, liquids, clothes or other people.

Pinworm eggs can survive for two to three weeks on surfaces.

Risk factors

Risk factors for pinworm infection include:

• Being young. Pinworm infections are most likely to occur in children ages 5 to 10. The tiny (microscopic) eggs are easily spread to family members, caregivers, or other children at school or child care centers. Pinworm infections are uncommon in children younger than age 2.
• Living in crowded spaces. People who live in institutions are at higher risk of developing pinworm infections.

Complications

Typical pinworm infections don’t cause serious problems. In rare circumstances, heavy infestations can cause infection of female genitals.

The parasite can travel from the anal area up the vagina to the uterus, fallopian tubes and around the pelvic organs. This can cause problems such as inflammation of the vagina (vaginitis) and inflammation of the inner lining of the uterus (endometritis).

Although rare, other complications of a pinworm infection may include:

• Urinary tract infections
• Weight loss
• Infection of part of the abdomen (peritoneal cavity)

Prevention

Pinworm eggs can cling to surfaces, including toys, faucets, bedding and toilet seats, for two weeks. So besides regular cleaning of surfaces, methods to help prevent the spread of pinworm eggs or to prevent reinfection include:

• Wash in the morning. Because pinworms lay their eggs at night, washing the anal area in the morning can help reduce the number of pinworm eggs on your body. Showering may help avoid possible re-contamination in bath water.
• Change underwear and bedding daily. This helps remove eggs.
• Launder in hot water. Wash bedsheets, pajamas, underwear, washcloths and towels in hot water to help kill pinworm eggs. Dry on high heat.
• Don’t scratch. Avoid scratching the anal area. Trim your child’s fingernails so there’s less space for eggs to collect. Suggest that your child avoid biting his or her nails.
• Wash your hands. To reduce your risk of getting or spreading an infection, wash your hands well after using the toilet or changing a diaper and before eating.

Pinworm infection – Symptoms & causes

Overview

Pinworm infection is the most common type of intestinal worm infection in the United States and one of the most common worldwide. Pinworms are thin and white, measuring about 1/4 to 1/2 inch (about 6 to 13 millimeters) in length.

Pinworm

An adult pinworm generally is 1/4 to 1/2 inch (about 6 to 13 millimeters) in length. The most common symptom of infection is anal itching, particularly at night, as worms migrate to the host’s anal area to lay their eggs.

While the infected person sleeps, female pinworms lay thousands of eggs in the folds of skin surrounding the anus. Most people infected with pinworms have no symptoms, but some people experience anal itching and restless sleep.

Pinworm infection occurs most often in school-age children, and the tiny (microscopic) eggs are easily spread from child to child. Treatment involves oral drugs that kill the pinworms and thorough washing of pajamas, bedding and underwear. For best results, the entire family should be treated.

Products & Services

Symptoms

Symptoms of pinworm infection may include:

• Itching of the anal or vaginal area
• Insomnia, irritability, teeth grinding and restlessness
• Occasional stomach pain and nausea

Pinworms often cause no symptoms.

When to see a doctor

Consult your doctor if you have severe anal itching, especially at night.

Causes

Accidentally swallowing or breathing in pinworm eggs causes a pinworm infection. The tiny (microscopic) eggs can be carried to your mouth by contaminated food, drink or your fingers. Once swallowed, the eggs hatch in the intestines and mature into adult worms within a few weeks.

Female pinworms move to the anal area to lay their eggs, which often results in anal itching. When you scratch the itchy area, the eggs cling to your fingers and get under your fingernails. The eggs then get transferred to other surfaces, such as toys, bedding or toilet seats. The eggs can also be transferred from contaminated fingers to food, liquids, clothes or other people.

Pinworm eggs can survive for two to three weeks on surfaces.

Risk factors

Risk factors for pinworm infection include:

• Being young. Pinworm infections are most likely to occur in children ages 5 to 10. The tiny (microscopic) eggs are easily spread to family members, caregivers, or other children at school or child care centers. Pinworm infections are uncommon in children younger than age 2.
• Living in crowded spaces. People who live in institutions are at higher risk of developing pinworm infections.

Complications

Typical pinworm infections don’t cause serious problems. In rare circumstances, heavy infestations can cause infection of female genitals.

The parasite can travel from the anal area up the vagina to the uterus, fallopian tubes and around the pelvic organs. This can cause problems such as inflammation of the vagina (vaginitis) and inflammation of the inner lining of the uterus (endometritis).

Although rare, other complications of a pinworm infection may include:

• Urinary tract infections
• Weight loss
• Infection of part of the abdomen (peritoneal cavity)

Prevention

Pinworm eggs can cling to surfaces, including toys, faucets, bedding and toilet seats, for two weeks. So besides regular cleaning of surfaces, methods to help prevent the spread of pinworm eggs or to prevent reinfection include:

• Wash in the morning. Because pinworms lay their eggs at night, washing the anal area in the morning can help reduce the number of pinworm eggs on your body. Showering may help avoid possible re-contamination in bath water.
• Change underwear and bedding daily. This helps remove eggs.
• Launder in hot water. Wash bedsheets, pajamas, underwear, washcloths and towels in hot water to help kill pinworm eggs. Dry on high heat.
• Don’t scratch. Avoid scratching the anal area. Trim your child’s fingernails so there’s less space for eggs to collect. Suggest that your child avoid biting his or her nails.
• Wash your hands. To reduce your risk of getting or spreading an infection, wash your hands well after using the toilet or changing a diaper and before eating.

Anal itching – health articles

11/10/2022

Anal itching – a condition characterized by unrelieved persistent itching in the anus and is a clinical symptom of many proctological diseases. However, quite often in patients suffering from anal itching, intestinal diseases are not detected.

In order to identify the causes of anal itching, laboratory (study of perianal scraping, feces for helminth eggs, blood glucose) and instrumental diagnostics (anoscopy, sigmoidoscopy) are carried out. The algorithm for eliminating anal itching involves conservative or surgical treatment of the underlying pathology, the use of local remedies, and physiotherapeutic procedures.

Causes

The most likely causes of itching in the anus are:

• Worm infestation with pinworms. The presence of worms in humans is accompanied by severe itching around the anus. This symptom is most pronounced in the evening and at night. Most often, pinworms are found in young children who neglect the rules of personal hygiene and can become infected with helminthic invasion in the village, playing in the sandbox, as well as from unwashed vegetables and fruits.
• Anorectovaginal diseases: anal fissures, hemorrhoids, fistulas, genital warts and anogenital warts.
• Dermatological diseases. Anal itching is one of the main symptoms of head lice, scabies, lichen planus, seborrheic eczema, psoriasis, eczema, mycotic skin lesions and various allergic dermatitis.
• Microorganisms, bacteria and fungi. Itching of the anus usually accompanies such parasitic diseases as taeniasis, amoebiasis, giardiasis, opisthorchiasis, etc. In some cases, this symptom also occurs with gonorrheal-trichomonas infection.
• Itching in the anus can be caused by diseases of the stomach and intestinal tract: ulcers, hypo- and hyperacid gastritis, polyposis, dysbacteriosis, colitis, dyskinesia.
• Internal diseases (diseases of the liver and pancreas, diabetes mellitus, oncological pathology, intoxication).
• Contact dermatitis – allergic reactions to topical application of ointments, deodorants, soaps and washing powders.
• Poor personal hygiene, use of coarse toilet paper, frequent shaving of the hair around the anus, stale underwear, underwear made of synthetic fabrics, or wearing thongs with coarse seams.

In some cases, the cause of itching in the anus is the use of antibiotics, especially erythromycin and tetracycline drugs. The risk group for the occurrence of the disease also includes people who are overweight or sweat excessively.

Symptoms

The main symptom of the disease is constant itching in the anus, which increases at night and on contact with clothing. With a long course of the disease, the skin around the anus turns red, covered with scratches, coarsens over time or, conversely, becomes thinner, and it is easy to injure it.

Diagnosis

Despite the fact that the symptoms manifest themselves quite clearly, it is possible to talk about what problem caused it and what needs to be done next only after consulting a specialist, namely a proctologist, who will conduct a series of studies and prescribe tests, based on the results of which he will make an accurate and correct diagnosis.

In addition, a number of tests are prescribed:

• Scraping. According to this analysis, it is possible to say for sure whether the presence of worms is the cause of itching. In the event that it is positive, then the doctor will direct you to pass the feces for the presence of worm eggs in it.
• Blood sugar test. It is very important to donate blood for sugar, since in a few percent of cases the reason lies precisely in this. Before passing the analysis, it is advisable not to eat in the evening, as well as in the morning. It is allowed to drink only water and then in small quantities
• Bacteriological analysis of feces. This analysis will be prescribed to the patient if, in addition to itching in the anus, he is also tormented by loose stools that do not stop for more than three days (taking into account taking drugs to strengthen it).
• Irrigoscopy and sigmoidoscopy, which are prescribed when the doctor suspected problems with the rectum.
• Ultrasound examination of the prostate in men.
• Ultrasound examination of the abdominal organs in the event that, in addition to itching, nausea and occasional vomiting are constantly tormented.
• Gastroscopy when there are problems with digestion.

Women also need to consult a gynecologist.

Treatment

Daily hygiene procedures are recommended as a preventive measure and to reduce the discomfort of the patient with anal itching, after a bowel movement, wet antibacterial wipes or cool running water can be used to clean the skin around the anus, it is better to give preference to loose underwear made of natural fabrics, which is well permeable air.

In difficult cases, the doctor may prescribe glucocorticosteroid hormones, treatment of the itchy area with corticosteroid ointments, cooling water-alcohol solutions with anesthesin, menthol, lidocaine, novocaine, soothing suppositories.

It is necessary to exclude: spicy food, which can contribute to the production of a secret that causes irritation of the skin and mucous membranes of the anus. Avoid stress, as skin itching can be the result of a general neuro-emotional overstrain.

Based on the results of the examination and the determination of the cause of anal itching, a course of drug treatment is prescribed. Medicines can be applied intravenously, orally, and topically to the inflamed area.

symptoms, treatment – health articles

11/10/2022

Worms are worms that lead a parasitic way of life in the body of their host – a man. Age doesn’t matter. Both adults and children are equally susceptible to infection. The classification of helminthiases is very extensive, especially in countries with a hot climate.

There are 3 classes of parasitic worms:

• round (nematodes) – pinworms, roundworms;
• tape (cestodes) – pork tapeworm, bovine tapeworm, echinococcus;
• flatworms, flukes (trematodes).

The most common worms in children are pinworms that cause enterobiasis . These are helminths of small size, on average up to 1 cm, white-gray in color with a curved body. The place of localization of these parasites is the large intestine, but they can also penetrate into the lower sections of the small intestine. Reproduction of pinworms occurs on the skin near the anus. At night, female pinworms get out to debug eggs in the folds of the skin, often penetrating the labia in girls, which ends with infectious diseases of the genitals. In total, these helminths live for about 1-1.5 months. The process of self-infection in a child can lead to the fact that the malaise will continue for many years. Parasites can be detected with the naked eye in the stool.

Another type of worm most commonly found in children is roundworm . Characteristic species, reaching a length of 15 cm, these nematodes settle in the lumen of the loops of the small intestine, advancing towards the moving food bolus. In the feces, roundworms are very rare. Females periodically release eggs, which can be found in the analysis of feces. But if they were not found during the study, this does not mean that the child is not infected. The life cycle of roundworm can last several years.

Causes

The child’s curiosity is realized by his fingers, the child, learning the world, actively touches everything that comes to his hand and immediately puts it into his mouth, testing for strength and taste. Thus, pinworm eggs safely enter the digestive tract of their future little host.

A child becomes infected with worm eggs from the surface of unwashed fruits when drinking contaminated water. Very often, infection occurs when communicating with animals, or when playing in the ground, a sandbox, where cats and dogs like to solve their physiological problems. After a walk, children often do not wash their hands, and all the dirt, along with parasitic eggs, gets into their mouths.

Symptoms of worms

How can you tell if a child has worms? If the child was infected with a large number of eggs of parasitic worms, then after a few days a sharp deterioration in the condition may occur. In milder cases, the first symptoms of invasion appear after a few weeks or even months. Much depends on immunity. It can quite cope with parasites and restrain their development. But gradually the defenses are reduced, and the helminths infect the body, causing serious problems.

The first signs of worms are symptoms of poisoning (intoxication). The vital activity of worms is accompanied by the release of a large number of animal toxins that can poison the child’s body. In the intestines, parasitic worms use nutrients, as a result of which the baby gradually becomes deficient in proteins, carbohydrates, fats and vitamins.

The child develops:

• emaciation,
• pale skin,
• weakness, frequent dizziness,
• rise in body temperature, headache,
• bad dream,
• tearfulness,
• depressed mood.

Manifested intestinal ailments – constipation, loose stools, rumbling and pain in the abdomen, bouts of nausea and vomiting, pain in different parts of the abdomen, bloating. The disease may be accompanied by allergic conditions: itching, rashes, cough, inflammation of the mucous membranes of the respiratory tract. Weakened immunity leads to the addition of infectious diseases.

Diagnosis and treatment of helminthiasis

Diagnosis of helminthiasis by feces is quite difficult. This is due to the fact that ascaris or pinworm eggs do not appear in the feces every day, and the technique of microscopy of smears from the analysis requires great care. To increase reliability, it is desirable to take a stool test for worm eggs for at least 3 days in a row.

In cases of increased risk of infection with worms (contact with animals, the child’s playing on the ground or in open sandboxes, the child’s habit of taking things in his mouth, biting his nails or licking his fingers, etc.), it is advisable to undergo an in-depth examination, which includes, in addition to a threefold analysis of feces special blood tests that detect antibodies to helminths.

In the presence of allergic manifestations of unknown origin, an increase in the number of eosinophils in the blood test, persistent intestinal dysbacteriosis, it is advisable to donate blood for the determination of class E immunoglobulins (Ig E and G) to ascaris and other helminths.