Worms In A Person: In Which Body Systems Are Worms Found

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Worms In A Person: In Which Body Systems Are Worms Found
Worms In A Person: In Which Body Systems Are Worms Found
Video: Worms In A Person: In Which Body Systems Are Worms Found
Video: How Worms Survive Inside Your Body 2023, February

The insidiousness of helminths lies in the fact that they poison a person with the products of their vital activity, thereby causing irreparable harm to him. Worms in humans are capable of causing serious dysfunctions in the work of the body, since having penetrated into a certain organ and settled there, they slowly but thoroughly destroy the tissue of the organ and disrupt its normal functioning. Worms are also dangerous in that they remain unnoticed for a long time, carrying on their destructive activities at this time. A person realizes that something is wrong with him only when his health worsens. This happens when the toxins released by the parasite have a destructive effect on the entire body.


A favorite site of many parasites is the intestines. After all, this is a warm and cozy place with ready-made, varied food. However, this is not the only place chosen by helminths; they can inhabit the liver, bile ducts, under the skin, in the heart and lungs, and also in the brain.


  1. Localization of worms in the human body
  2. Intestinal worms
  3. Parasites in the lungs
  4. Parasites in the brain
  5. Parasites in the liver
  6. Parasites under the skin
  7. In muscles and joints
  8. Parasites in the eyes

Localization of worms in the human body

Depending on the place of localization, helminths are divided into:

  • translucent;
  • tissue;
  • tissue-luminal.

Helminths living in the hollow organs of the gastrointestinal tract are luminal. This is the majority of all parasitic helminths in the human body. As a rule, they live in a specific part of the intestine, in different parts of the large or small intestine.


Tissue helminths are localized in different organs or tissues. For example, muscles, lungs, or the liver are a favorite habitat for trematodes (flukes). Filariae are localized in the body cavity, subcutaneous tissue, lymphatic and blood vessels, heart. Cysticercus parasitizes in the human brain.

Roundworms belong to the mixed type of helminths, since in the larval stage they migrate throughout the body and can parasitize in any organ. But becoming adults, they settle in one specific place - the small intestine.

The symptomatology of helminthiasis depends on the location of the helminths. For example, large helminths (bovine and pork tapeworm, wide tapeworm), becoming very large, are able to close the intestinal lumen. In this case, the normal functioning of the organs of the gastrointestinal tract is disrupted. With the localization of helminths in the heart, symptoms characteristic of diseases of cardiovascular diseases are observed, if the worms in a person are located in the lungs, the symptoms are the same as in diseases of the pulmonary system.

For this reason, it is very difficult to suspect the presence of a parasite in the body, since the symptoms of helminthic invasion do not have clear symptoms, but are similar to the symptoms of other diseases.

Intestinal worms

Worms parasitizing in the intestines are the most common pattern. Recognizing them in the gastrointestinal tract is difficult, but not impossible. There are a number of basic symptoms that eloquently demonstrate the presence of parasites in the digestive system:

  1. Indigestion. Constipation can be due to the fact that helminths cause intestinal obstruction, but at the same time, toxic substances provoke diarrhea. Bloating, nausea and vomiting, flatulence, and enzymatic disorders are also observed. In addition, these symptoms can accompany a person for many years.
  2. Weight loss. This is a very important symptom, since the presence of parasites in the body contributes to a deterioration in appetite, which interferes with the absorption of nutrients, vitamins and trace elements. As a result, a person is depleted and thinner. However, in some cases, the appetite increases, since the worms in a person absorb most of the nutrients, then the person constantly wants to eat. He may even get better, but more often, of course, a person weakens and loses weight.

Parasites in the lungs

The larvae of some helminths very often parasitize in the lungs, except for the main worms, which live there permanently. In this case, symptoms characteristic of diseases of the pulmonary system are observed. Worms in a person's lungs are a very dangerous phenomenon that can lead to disability and disability, and sometimes even to a terminal state. If worms were found in the lungs, then they must be destroyed with the help of antihelminthic drugs.


However, the presence of parasites in the lungs is detected only in the later stages of the disease. As a rule, this happens several years after infection, when the body's defenses weaken at some point. In this case, the worms are activated and multiply intensified.

The following parasites can inhabit the lungs:

  1. Toxoplasma causes the disease toxoplasmosis. These simple microorganisms can cause the development of pneumonia and bronchitis.
  2. Roundworms provoke the disease ascariasis. This parasite is large and, if localized in the lungs, can cause suffocation when the trachea is blocked, severe allergies up to bronchospasm and anaphylactic shock.
  3. Pork tapeworm larvae cause a very dangerous disease of cysticercosis. This disease is extremely difficult to treat, since it is asymptomatic for a long time and manifests itself even when complications develop. The most common complications are chronic bronchitis and pulmonary fibrosis.
  4. Echinococcus causes the disease echinococcosis. These worms in humans are capable of forming cysts in the lungs, as well as specific reactions of an inflammatory or allergic nature. The echinococcal cyst can grow to such a size that it can cover half of the lung and lead to respiratory failure.

Helminths enter the pulmonary system through the diaphragm, localize there and begin to actively grow and develop. In areas where parasites are located in the lungs, scars and adhesions appear, which after a while leads to a change in the lung tissue. This is fraught with irreversible changes that impair the functioning of the pulmonary system. If adequate treatment is not carried out, then all of the above factors can provoke serious diseases:

  • bronchial asthma:
  • pulmonary fibrosis:
  • bronchitis;
  • pneumonia;
  • emphysema of the lung;
  • pleurisy;
  • tumor neoplasms;
  • pneumothorax;
  • pneumosclerosis.

When the echinococcus larvae enter the lungs, a very dangerous disease called pulmonary echinococcosis develops. It manifests itself in the form of an echinococcal cyst, which has a unicameral form. In the lungs there can be not only one cyst, sometimes there are several of them, which poses a great danger to human life. The size and location of the cyst determines the severity of the disease and the methods of treatment. Usually, the treatment is done with surgery.

Parasites in the brain

Localization of helminths in the brain is very dangerous, since many pathological conditions develop. In addition, in this case, the treatment is very difficult and often does not give the desired effect. Worms in the head cause great damage to human health, gradually destroy brain cells and lead to many mental disorders. In some cases, worms in humans can even cause the death of the host. If the helminths are located in the right hemisphere, then the intellectual function of the brain decreases, memory deteriorates, and if the left hemisphere is affected, then various speech disorders occur. With the defeat of the frontal lobe, a person ceases to be aware of his behavior, he breaks away from reality, staying in his world.


The following parasites can inhabit the brain:

  1. Amoeba Naegleria fowleri. The unicellular amoeba enters the brain through the nose. Parasitizing the brain, it destroys it, often leading to the death of the patient.
  2. Pork tapeworm. This parasite has a powerful suction apparatus, consisting of two suction cups, and around them there is a corolla with hooks. A particular danger is the disease cysticercosis, in which the Finns of the pork tapeworm are localized in the brain. In this case, the cerebral hemispheres, ventricular systems and the base of the brain are affected. There are stages at which several parts of the brain are simultaneously affected. Human infection occurs when eating pork meat contaminated with pork chain.
  3. Ascaris. This type of nematodes (roundworms) is rightfully considered ubiquitous. There is no organ wherever they enter. Roundworms are able to migrate through the body for a long time, choosing a comfortable place for themselves. When ascaris is localized in the brain, the symptoms depend on which part of the brain they are located in. If they are located near the outer (meningeal) membranes of the brain, then meningoencephalitis develops with severe headaches. When the larvae are localized in the depths of the furrows of some areas of the medulla, granulations (compaction) can form. As a result, symptoms of brain tumors develop, which manifest themselves in the form of impaired vision and hearing, loss of consciousness, epilepsy and seizures. With massive invasions, cerebral edema is possible.

Worms in humans enter the brain in the following ways:

  • with blood flow;
  • on the respiratory tract;
  • on the auricles;
  • on the auditory tubes;
  • through the nasal passages.

Parasites in the brain can be detected using computed tomography.

Parasites in the liver

Localization of parasites in the liver is quite common. Many types of worms live in the liver, since they feed on its blood and liver tissue juice. The presence of parasites in the liver can be suspected by the following symptoms:

  • general intoxication;
  • nausea and vomiting;
  • pain and heaviness in the liver;
  • nervousness;
  • irritability;
  • insomnia.

In the absence of adequate treatment, liver cirrhosis and hepatitis can occur. If the diagnosis was carried out in a timely manner and treatment was started on time, then liver function can be fully restored. The liver is an organ that can be restored with appropriate treatment.


The following parasites live in the liver:

  1. The simplest amoebas. These microorganisms enter the liver through the intestinal wall into the lymph nodes, into the veins and arteries through which they migrate to the liver. They contribute to the formation of blood clots, interfere with the normal nutrition of liver cells, and release toxic waste products that are products of their vital activity. As a result, abnormalities in the functioning of the liver occur, necrosis of the liver tissue is formed, and inflammatory processes develop. These violations have a special name - amoebic process.
  2. Giardia. These simple microorganisms cause a lot of controversy among specialists. Some experts argue that lamblia is not localized in the liver, does not cause inflammation in it and, in general, giardiasis, a disease that does not need to be treated. Others believe that lamblia are able to penetrate the liver and provoke the development of inflammatory processes in the form of degeneration of liver cells. Most often, it is not the lamblia themselves that are dangerous, but the development of secondary bacterial infections against the background of giardiasis.
  3. Alveolar echinococcus. This helminth causes a very formidable disease of alveolar echinococcosis. It is manifested by an enlargement of the liver and the spread of so-called alveolar cysts, which are capable of metastasizing to other organs.
  4. Schistosomes. These helminths are capable of parasitizing in the blood vessels of the liver. Their vital activity leads to liver damage, cirrhosis and hepatitis.
  5. Single-chamber echinococcus. The helminth is located in the liver in the form of a bubble. It is capable of rapidly increasing, resulting in atrophy of the liver, squeezing of blood vessels and bile ducts.
  6. Ascaris. These helminths, when localized in the liver, cause micro-abscesses and micro-necrosis. If adults enter the liver, then a person develops cholangitis, hepatitis, or purulent inflammatory processes.

Parasites under the skin

The following helminths can parasitize under the skin:

  1. Dirofilaria. These worms in humans cause the disease dirofilariasis. The disease is transmitted to humans by transmission through the bite of a mosquito that carries the infection. Domestic dogs and cats are the source of infection. Dirofilariae of the genus Dirofilaria Immitis parasitize in the right atrium of the heart or in the pulmonary artery, and Dirofilaria repens under the skin or under the conjunctiva.
  2. Filaria. The larvae of these parasites are transmitted to humans through the bites of blood-sucking insects (mosquitoes, horseflies, midges, biting midges), which are intermediate hosts and carriers of a disease called filariasis.
  3. Cysticerci. These parasites are Finnish pork tapeworms. They represent a bubble in which the head of a pork tapeworm is located, with suction cups and hooks. Sometimes there are giant blisters with cysticerci * of a branched or aciniform character.
  4. Schistosomes. The larvae (cercariae) of these parasites are able to enter the human body through the skin. This happens when swimming in freshwater reservoirs with stagnant water, since in such reservoirs one of the stages of schistosome development takes place.
  5. Helminths of Risht. These are large Guinean worms from the genus of nematodes, similar to thin white laces. Females reach one or more meters in length, while males are only 4 centimeters long. These helminths enter the human body along with poor-quality drinking water. They cause dracunculiasis in humans.

Each helminth that parasitizes the subcutaneous tissue has its own specific symptoms and treatments. To get rid of subcutaneous worms, not only conservative medical methods of treatment are used, but also surgical methods that allow them to be removed from the human body.

In muscles and joints

During the migration of parasites through the body, they penetrate into different organs and systems. In some cases, they are able to parasitize muscles and joints. Helminths are located in the most convenient places for parasitism, so they can often be found in joint fluid and muscles. Sometimes a person experiences severe joint pain that he cannot explain. But identifying parasites in joints or muscles is a rather difficult task, since there are a large number of diseases, various bacterial infections leading to joint pain. In these cases, only a full diagnosis can reveal the cause of the disease.

The presence of parasites in the joints leads to the development of rheumatoid arthritis, which is manifested by the strongest joint inflammation. In the absence of adequate treatment, the joints begin to deform, increase in volume and lose mobility. If you just stop the symptoms of arthritis, then the treatment will not give the desired result. First of all, it is necessary to eliminate worms from the body.

The following helminths parasitize the joints and muscles:

  1. Ascaris. The larvae of these helminths are able to migrate throughout the body and localize in any organ. Penetrating into the blood vessels, they can end up in the joints with the bloodstream, causing inflammation.
  2. Hookworms. These parasites usually live in the human intestines, but in some cases, during migration, they are able to penetrate the joints and muscles.
  3. Trichinella. During migration, this type of nematode is capable of affecting any organs, as well as joints, muscles and human skeleton.

In addition, even parasitizing in the gastrointestinal tract, helminths are able to provoke pain in the joints and muscles. The reason for this is the impaired absorption of nutrients in the intestines, and the body is deficient in enzymes, vitamins and trace elements. Because of this, the body's resistance to various infections decreases, the condition of the hair, nails, skin deteriorates, and inflammatory processes in the joints are read. Chronic diseases are exacerbated if the patient has them.

Parasites in the eyes

Helminths can parasitize not only in the intestines, lungs, heart and joints of a person. They can just as well dwell in the most sensitive organ - the eyes, causing various disorders of the visual system.


Worms in a person can also be in the eyes:

  1. Opisthorchis. This helminth enters the eyes from the liver. Parasitizing the eyes, it causes inflammation of the iris of the eyes and eyelids. As a result, adhesions are formed and there is a possibility of loss of vision. Both eyes are affected at once.
  2. Echinococcus. Initially, it is localized in the intestine, then with the blood flow it enters the liver, muscles, lungs, brain and eyes. In the case of localization of echinococcus in the eyes, bulging develops, since the cyst in which the parasite is located pushes the eye out.
  3. Dirofilaria. This worm is able to move under the skin and thus causes many unpleasant moments in the patient. As a rule, only one individual parasitizes in the body, the larva, which enters the body after a mosquito bite. The parasite is able to overcome more than 15 centimeters per day. In case of the premature death of the helminth, the person feels the symptoms of intoxication.

In addition to worms, larvae of some families of flies can inhabit the eyes. In this case, a disease called ophthalmomyasis develops. Fly larvae begin to develop under the skin, which leads to inflammation and the formation of a nodule under the skin. The patient feels the larva, and from the side its movements are noticeable under the skin. As a result, conjunctival larval granuloma and larval conjunctivitis develop.

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