The human body is constantly exposed to dangers from the outside. This is a different type of disease, infection and so on. One of the most common, serious problems is parasites. They enter the body completely unnoticed, the consequences can be very serious. It is important to know which parasites in the human body are the most dangerous, what are the health threats due to them. You can see the parasites in detail in the photo.
Different worms live all over the world, they are all divided according to the mode of transmission, type. Parasitic worms are transmitted to humans mainly in the following ways:
- infected person;
- animals;
- soil, food, water;
- insect bites.
Worms are divided into several types:
- flukes;
- round;
- tape.
Worms are a very large class of parasitic worms that live in plants, animals and humans. They can live in hollow organs, thicker tissues, the tissues themselves.
Top 10 most dangerous parasites in the human body
- Schistosomes are dangerous parasites from tropical waters.
- Rishta is a worm that lives under the human skin.
- Filariae are dangerous parasites of elephantiasis.
- Echinococcus are dangerous larvae in the body.
- Whiskered Vandellia is a fish parasite.
- Roundworms are known to all worms.
- Bovine tapeworm is a very large and long worm.
- Ankylostoma is a small harmful worm.
- Wide tapeworm - danger to the human intestines.
- Pork tapeworm is a dangerous disease.
Schistosomes - living in venous blood
The second name of the parasite is blood fluke. Infection occurs through the skin, contact with contaminated water. The disease caused by schistosomiasis is called schistosomiasis.
They differ from other helminths in their habitat: they live, multiply in the venous system. Most common in South America, Africa, the Middle East, Southeast Asia. They are not large in size, length 2. 6 cm, diameter 0. 6 mm, which is clearly visible in the photo. A person realizes that he is infected with the following symptoms:
- bowel disorder;
- enlarged lymph nodes, spleen.
But the symptoms are different, it all depends on the place of the body where schistosomes have accumulated:
- nervous system - disorientation, memory loss, headache;
- bladder - organ inflammation, blood in the urine, abdominal pain;
- liver - ascites, enlargement of the organ, spleen;
- intestines - diarrhea, polyps.
Eggs of worms are very dangerous, they pierce, damage the walls of lymphatic and blood vessels of various organs and tissues. In this way, parasites can even get into the uterus, lungs, prostate, and stomach. Worms, eggs clog blood vessels, which leads to the formation of varicose veins, tumors, cysts. Helminths of this type can lead to serious problems, including cancer of the bladder, liver, prostate, liver fibrosis. To avoid infection with the most dangerous parasites of the human body, it is very important to avoid swimming in tropical waters, wash vegetables, fruits and hands well before eating. It is possible to recover from schistosomiasis conservatively if treatment is started on time. In case of complications, operations are performed.
Rishta - subcutaneous worm
Dracunculiasis is a disease caused by this type of parasite in the human body. Infection occurs through the dirty water of tropical reservoirs of Asia, Africa. Usually humans are infected, but there are cases of dogs being infected.
The worm enters the human body when swallowing contaminated water, where copepods live - carriers of the larvae of the rishta. Treatment only by surgery. Secondary infection of already wounded skin is very dangerous.
Once in the body, the rishta literally gnaws through the tissues, intestinal walls, lives in the lymphatic vessels, subcutaneous fat. In length, the worm can grow large, up to 80 centimeters. Strong abscesses appear in the areas of the body where the rishta are located, and parasites can be found inside them. The disease is caused only by females, males die after mating. When the infected skin area comes into contact with water, the female worm goes out a short distance, throws its larvae into the water. These larvae must be caught by copepod crayfish in order to survive.
Filariae is a very dangerous parasite for the body
Another name for the worm is filamentous. Of all the species, about 10 prefer people, lead to filariasis. They were called thread because of their appearance, the worms are very thin, like a thread, you can see this in the photo. 0. 3 cm in diameter, however, they grow large in length, up to 50 cm or more. Having struck the body, they live in the subcutaneous tissue, body cavity, heart, blood, lymphatic vessels, any part of the body. Very common in hot countries.
They are transmitted through blood-sucking insects, sometimes ticks, which in turn become infected through the blood of an infected animal, human. The danger lies in the fact that the most terrible worms can be detected when the ailment has become chronic, it is almost impossible to cure it. Accumulating, filarias block the lymphatic system, clog blood vessels, causing elephantiasis. The patient's legs become large, swell excessively, up to the inability to move, there are many photos of people with this disease on the Internet.
Echinococcus is a great danger to humans and animals
This tapeworm lives in the intestines of dogs, wolves, rarely cats, and can easily be transmitted to humans. 
Echinococcus larvae are one of the most dangerous, causing echinococcosis. An adult worm is 3 to 5 mm long, in the photo describing the parasite, it is clearly visible that it has a head with suckers, hooks, and segments. From the body of canines, eggs come out with feces, sometimes getting on the wool.
Infection is also possible through livestock. Infection occurs in humans through the mouth, eating contaminated meat, dog saliva. The larvae penetrate further into the body, through the blood they enter the liver, where they live and multiply. Rarely get into bones, muscles, lungs. While developing, echinococci turn into large bubbles the size of a child's head. Depending on the neglect of the disease, treatment is carried out with drugs or promptly, by removing the tissues of the organ along with the bubbles of the larvae.
Whiskered Vandellia - the smallest and most terrible
In general, this creature belongs to fish, but it is one of the most dangerous for the body. People are afraid of her because during bathing, an almost transparent small creature 15 cm long can easily penetrate the urethra, genitals, anus. Then Vandellia is attached to the vessels and feeds on blood. Unfortunately, the only way to get rid of the parasite is through surgery.
Ascaris - the most famous worm of the human body
The parasite is quite widespread, often found in the human body. If the eggs of a human roundworm fall into the soil, they can be stored there for almost a year until they move to a favorable environment. In the body, it releases toxins that affect the liver and lungs. Ascaris does not stop in one place, constantly travels through the body, affects blood vessels, and causes inflammation.
The main place of life of the most harmful worm is the intestine, where the parasites live comfortably, eating the food that the infected person eats. They can pass into the pancreas, bile, liver, reach the esophagus, block breathing. One roundworm lays up to 1000 eggs per day. They grow quite large in length, up to 30 cm.
Bull tapeworm is the largest and most dangerous worm
This very large parasite lives in the small intestine, the photos of the tapeworm are simply amazing. The body of the tapeworm consists of a head with suckers, a large number of segments, which number from 2, 000 to 5, 000. The length of the worm constantly increases with growth, up to 10 meters. In the human body, without treatment, it can live up to 20 years. Produces about 600 million eggs per year, up to 11 billion per life cycle.
Lives only in the small intestine of an animal, human. The intermediate host through which a person becomes infected is cattle. Infection occurs through poorly processed, cooked or raw meat, milk, fish, through contact with pets.
Hookworm - a harmful, dangerous worm
The worm is very common in East Asia, Africa, causing hookworm disease. The parasite lives in the human duodenum, does not grow large, maximum 14 mm. Infection occurs through dirty hands, vegetables, fruits, even through the skin while working with the soil, when walking barefoot on the grass, the larvae penetrate the skin.
Once in the body, it enters the blood vessels, from there it goes to the liver, heart, lungs. Ankylostomosis leads to serious complications, in particular hepatitis, ulcers.
Wide ribbon - a dangerous parasite with a large long body
Infection with this worm occurs through fish, if a person ate raw, poorly cooked fish, raw pike caviar or was engaged in the processing of infected fish, seafood.
A dangerous tapeworm grows up to 15 meters in length, it is very large, the body consists of a large number of segments - up to 4, 000, on the head there are suckers with which the worm is attached to the intestines. Looking at the photo of the worm, it is simply hard to believe that it can live inside a person. The larva develops in just a month. Wide tapeworm leads to a serious illness - diphyllobothriasis.
The patient has a strong vitamin deficiency, because the worm feeds on all the nutrients of the body. All of its large body absorbs substances on its surface. In the place where the tapeworm has sucked, necrosis begins. The most dangerous tapeworm can live in the human body for up to 10 years.
Pork tapeworm is a very harmful worm of the human body
This worm can be confused with a bovine tapeworm, but it does not grow so large, maximum 3 meters in length. There are also fewer segments on the body, up to 1, 000. On the head of the worm there are suckers, a proboscis with hooks. Thus, the tapeworm is attached to the intestinal walls. It takes root in the body of pigs, rabbits, hares, dogs, camels, through which it gets to the person - the final owner. Infection is permissible through the use of raw bacon, meat. It is very dangerous for eggs to enter the human body, since it becomes an intermediate master, the Finns stage occurs in it, which often leads to the most serious diseases and death.
Helminth causes diseases of cysticercosis, teniasis. If there are a lot of parasites, they clog the intestines, as a result, the patient needs to be urgently operated on. They can pierce the intestinal walls, get into the lymphatic vessels, and get into the internal organs. Complications of ailments lead to damage to the subcutaneous tissue, muscles, skin, spinal cord, brain, bones, and internal organs. The most important thing is to carry out prevention, carefully process the meat before eating. A person must observe personal hygiene, prevention of helminthiasis.