What do worms look like in humans (photo). Types of worms

Worms, which, as a parasite, develop and live in the body of plants, animals and humans, are usually called "helminths" in medicine, but among the people they are just worms. Diseases caused by them are widespread anywhere on the planet.

Types of parasites

what do worms look like in humans

According to statistics, more than a billion people are infested with helminths, which overload the immune system and make holes in blood vessels. You can get rid of these parasites with the help of medication or alternative treatment. The greatest harm to the human body can be caused by three types of helminths: flukes, round and tapeworms. Before choosing a method of disposal, you need to figure out what worms look like in humans.


In medical practice, such parasites are called nematodes. This is a very common genus of worms, which numbers more than twenty four thousand species, both free-living and parasitic.

The name of the type was given by the round shape, which can be seen in the cross section. These are worms with a thin, elongated body, pointed at both ends. The most common representatives of this type, which parasitize in the human body, are Trichina, human roundworm, whipworm, children's pinworm. Here it is necessary to find out what the worms look like in humans.

human worms photo

The body of the roundworm can reach forty centimeters, while the males are much smaller than the females. Her body is tense like a string. It is located in the small intestine. This parasite poisons the body with metabolic toxins.

Pinworms can parasitize in the small and large parts of the intestine. It is a small worm, the body length of which does not exceed one centimeter. Females usually lay eggs near the anus, which causes itching. This type of worm is quite often found in children.

But the most dangerous types of roundworms for humans are whipworm and trichina.


In medical practice, they are called trematodes. This kind of worms in humans (photo - in the article) has a flattened, flat body in the form of a sheet or tongue. The size of these worms can reach one and a half meters. These parasites usually enter the human body by eating undercooked or raw fish or crayfish. Usually they parasitize in various, even the most unexpected organs (conjunctival sac or Eustachian tube) or stick to the walls of the excretory ducts.

varieties of worms in humans photo

They do this with the help of suction cups (two or many, depending on the type). These worms have well-developed digestive, reproductive, and nervous systems, and there are practically no respiratory and circulatory systems. They feed on the host's blood, the contents of his intestines, epithelium or mucus. This is what human worms look like.

The name of these helminths was given inaccurate, since they do not suck anything out of the body. But despite this, the harm they do is enormous. The intermediate host of such worms is molluscs, then fish, and the final host is vertebrates, including humans.

Tape worms in humans

Just like the flukes described above, these are flatworms, subdivided into tapeworms and tapeworms. Unlike round ones, these have an intermediate host (animals and fish). It is in his body that larvae develop. When they are sexually mature, they usually live in the intestines of the vertebrate.

The body of such helminths is divided into segments. The head is the organ of attachment, and then there is the growth zone, therefore the parasite feeds on the surface of the body, and the food digested by the host becomes food for it. From digestion in the human body, such a worm (as well as many other types of parasites) is saved by the antikinase substance secreted by it, which neutralizes pancreatic juice. But from a diagnostic point of view, when identifying parasites, the differences between tapeworms and tapeworms are most important.

what are the human worms

The latter are characterized by a head (scolex), which has two suction grooves or pits at the anterior end of the helminth. Eggs are released into the external environment due to the fact that the uterus has its own opening. When examining stool, they can be found.

Due to their appearance, they received the name chain. A tapered, segmented body is their characteristic feature. The length of this worm can reach eighteen meters.

With the help of four suction cups located on the head, it attaches to the intestinal walls. And behind it is the neck, as it grows, segments are formed. It is very difficult to find the eggs of these parasites due to the fact that the uterus does not have an excretory opening. This is what human worms look like.

Determination of parasite infestation

These worms are characterized by three stages of development. First, there is an egg, from which a larva subsequently appears in the intestine, which then migrates to its permanent habitat (various organs). After that, helminths develop into adults. But some representatives of these worms remain in the same place where they were transformed, that is, in the intestines.

In order to understand where parasites came from in the body, you need to know what kind of worms a person has. They are divided into contact, that is, transmitted from person to person, geohelminthiases - those that enter the body with the ground on poorly washed plants, biohelminthiases - entering through the meat of affected animals or fish.

Signs of the presence of parasites in the human body

tapeworms in humans

Usually, signs of damage depend on the stage of development of the worms themselves. This ailment has an acute and acquired stage. The first can last up to three weeks and is characterized by an allergic rash, a suffocating dry cough, and an increased level of eosinophils is observed in the blood.

The next stage can last up to several years. Here, the identification of symptoms is influenced by the place of localization of parasites, the characteristics of their nutrition and the number. Fixing on the tissues of the places of distribution, worms in humans (photo - in the article) destroy them, causing an inflammatory reaction. And some rapidly developing species can cause irreparable harm to health and lead to disruption of vital organs.

Diagnosis of the presence of parasites is carried out by identifying eggs and larvae using analyzes of feces, sputum, etc.

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