Classification of parasites and worms that live in the human body


It's healthy to live in the world - parasites in the body interfere with this. These are the lower vegetable and animal forms, which live at the expense of the owner. Translated from the Greek, they mean - freeloader.

With regard to parasitism, they can be external and internal.

The parasites that live in the human body are divided into flat and round worms.

The planes are divided, in turn, into trematodes and cysts.

Roundworms are also called nematodes.

Nematodes living in the human body

human body worm parasite

Which parasites live in the body, first of all nematodes - they reach a great length and have the shape of an earthworm, hence the name - roundworms, these are:

  • roundworm;
  • earthworms;
  • hookworms;
  • trichinella.


One of the most common nematodes is the parasite, which in some cases can reach 45 cm. The female produces 200, 000 eggs, a process that occurs independently of the presence of a male in the host's body. Along with the feces, the eggs fall to the ground, where, when favorable factors arise, they are transformed into larvae. You can become infected with this helminth through dirty hands and unwashed vegetables, fruits and berries.

Signs of infection: nausea, salivation, loss of appetite. In the presence of a large number of ascarids, serious consequences, rupture of postoperative sutures, occurrence of pancreatitis can occur. Roundworms are especially dangerous for pregnant women - their penetration into the fetus is possible.


Small worms, up to 10 mm in size, are mostly infected by children, most often in kindergartens. A sick person becomes the cause of the infection and, if personal hygiene rules are not followed, the possibility of infection increases significantly. Signs of worm appearance:

  • nocturnal itching in the anal region;
  • decreased performance;
  • sleep disorders;
  • nervous disorders.

The presence of pinworms does not threaten the patient's life, but it is quite unpleasant and causes dysbiosis.


The 20 mm parasite is pink in color, gives less manifestation, but the damage from it is colossal. Its oral cavity has teeth and plaque with which it gnaws blood vessels. The larvae enter the body through the skin of barefoot hikers.

The larvae's main task is to enter the human mouth, from where, when swallowing saliva, they descend to the intestine, where the adult helminths are excreted. They feed on human blood, resulting in anemia. The threat is represented by its residues, which poison the body. The signs of the presence of helminths are: persistent bronchitis, dermatitis, nausea, abdominal pain, digestive disturbances. The heart suffers from this parasite - myocarditis may appear.


The females of the worms reach up to 4 mm, the males are smaller. They die in the external environment and are only viable inside the body. The source of infection is raw animal meat. Through blood vessels, the parasites are distributed to all organs, take root and can live in peace for 20 years.

Trichinella worm of the human body

The most common signs of infection are:

  • an increase in blood testing of eosinophilic leukocytes;
  • an increase in temperature to 40 °C;
  • muscle pain;
  • conjunctivitis and facial edema.

Trematode Parasites

Helminths, which are small in size, have a flat body on which there are 2 suckers. Most of them are hermaphrodites. An intermediate host is required for development.


Helminth - hermaphrodite, grows up to 14 mm, affects the bile ducts. The eggs, after entering the water bodies, settle in the molluscs, where they transform into larvae, then the larvae settle on the fish scales. If at this time a person eats poorly fried fish, he can become infected with this parasite.

In the body of its ultimate host, a human, the plague is introduced into the duodenum, where the larvae transform into an adult helminth. Water bodies are infected with worms by people who eat fish products and work in water vessels (their waste penetrates the water).


Helminths, having heterosexual individuals, looking like needles in their appearance. A pair of parasites produces up to 3, 000 eggs in 24 hours. A person is infected while bathing or with contaminated water. In the lungs and blood vessels, the larva becomes an adult. After that, egg laying takes place in the intestine.

In the presence of schistosomes, the following is observed:

  • stomachache;
  • violation of appetite;
  • anemia;
  • change from diarrhea to constipation;
  • weight loss;
  • violation of the cycle in women;
  • impotence in men;
  • decreased school performance of children.

When introduced into the nerve fibers, the development of paralysis, brain damage is possible.

where helminths can settle

People are often interested in knowing where parasites live in the human body.

The location is due to the type of host that entered the body of the "parasite". More often, they settle in Organs digestive organs, lungs, heart, liver.

The human body, where the parasite lives, becomes weakened and begins to suffer from various diseases, so it is not difficult to determine whether the parasites live in the body. You just need to be more attentive to yourself and if the slightest suspicion arises, you can't postpone your medical appointment.

helminths in the human body

In order for the body in which the 6-letter parasite lives to heal and become healthy, it must follow the rules of hygiene, not drinking raw water and not eating undercooked meat. Only then can the risk of infection be reduced.

It's great to live in this world and you don't want to think about parasites in the human body, but you have to. After all, every second person on Earth is infected with worms. The organism in which the parasite lives is a field of miracles, which will happen. But trusting fate is the fate of the weak.