Home Top 10 Top 10 Parasites and Worms May Living in Your Body Right Now

Top 10 Parasites and Worms May Living in Your Body Right Now


Top 10 parasites that may living in your body right now

A parasite is an organism that lives in another organisms or hosts body in which it’s growth and reproduction will takes place. For this they depends  on the food which is taken from the host. It cannot live independently without any hosts. There are more than 1,000 known parasite species that lives in our body. Here is the list of 10 parasites that may live in your body right now without your knowledge.This list of parasites and worms in the body gives you a better understanding about human body and working.

1. Tapeworms

Tapeworms are infected by  eating under cooked meat such as pork, beef, and fish, or by eating food prepared in, conditions of poor hygiene. In human body this parasite usually lives in intestines and it can grow up to 20 -30 meter. It can also live in human guts nearly 20-30 years.

If a Tapeworm larvae get into the human body it can destroy  the intestinal wall. The Tapeworm egg can create larval cysts in body tissues and organs outside the intestine and it can be very dangerous. If the infected parasite is just a Tapeworm larvae, then the parasite will grow old with people without any symptoms.

Blood tests, Imaging scan and Organ tests can be used to diagnose tapeworm larvae infection. The symptoms of tapeworm infection can vary on the type of tapeworm and the most seen symptoms are discomfort and diarrhea. Accidental infection of Tapeworm larvae can cause tissue infection (cysticercosis) anywhere in human body including brain. Oral medication is common treatment method for Tapeworm infection.

2. Liver Flukes

Liver Fluke is a chronic parasite which lives in bile ducts and liver. Human’s can infected through fresh-water raw fish and it is capable of moving along the blood circulation. It can live inside the Bile ducts for 20-30 years.

The disease caused by this parasite is generally active and it won’t show any symptoms of infection, except for patients with heavy infection. But this long living parasite can cause  formation of bile duct stone and the development of cholangiocarcinoma (bile duct cancer).

Mostly, liver fluke disease is largely shown in Asia and Eastern Europe. More than 35 million people worldwide are infected with liver fluke. One adult fluke can lay 2000-4000 egg per day and the eggs will be  excreted through the bile ducts and feces of the infected person.

3. Pinworm

Pinworm infection is a common infection in which that can spread very easily. They are narrow, tiny,white colored  worms and less than a half inch long. The symptoms caused by this infection is itching in the anal area and this will lead to sleeping difficulty.

This infection is mostly seen in children between the ages of 5 and 10, people who live in institutions, and those who have regular, close contact with individuals in these groups. This parasites can be infected by unintentionally ingesting pinworm eggs, that is usually deposited by an infected person and the cycle of infection starts.

After entering into the intestine it will remain in the intestine until it grows and moves to the colon and exit the body through the anus, then female pin worms will lay eggs in the folds of skin around the anus. When a person scratches the effected area, then the eggs will transfer into the nails and then it will transfer to other objects. The eggs can survive several hours on your hands. Treatment for pin worm infection is medication, although the reinfection is possible.

4. Hookworm

Hookworm is a human intestinal parasite. In the initial stage there may be itching and a rash at the site of infection. If the larvae and adult parasites are in the small intestine it will leads to intestinal diseases. Infection of host is using larvae through skin.

Inside the  body they migrate through the vascular system to the lungs, and from there up the trachea, and are swallowed. After that it will pass down to the esophagus and enter into the digestive system to finish their journey to the intestine, where the larvae mature into adult worms.

There are two types of hookworms that will commonly infect humans, they are  Ancylostoma duodenale and Necator americanus. Walking barefoot in warm climates with poor sanitation  will cause the infection.

No symptoms are shown when there is a few worms but those effected by many worms will show abdominal pain, diarrhea, weight loss, and feeling tired. It will also cause  mental and physical development of children  that may leads to Anemia.

6. Echinococcus Granulosus

Echinococcus Granulosus also called Dog tapeworm or hyper tapeworm, that will leads to Human echinococcosis disease. This parasite is infected through contaminated food, water or soil, or through direct contact with animal hosts. Length of an adult worm ranges from 3 mm to 6 mm.

This parasites will grow inside the human body slowly for years without any symptom of infection. There are two types of hosts that can be infected by Echinococcus Granulosus parasite, definitive hosts (dogs) and intermediate hosts (sheep, cattle, horses, pigs, goats, and camels).

The adult parasite will reside in the bowel of its definite host. Echinococcosis occurs in 4 forms:

1.  cystic echinococcosis

2.  alveolar echinococcosis

3.  polycystic echinococcosis

4.  unicystic echinococcosis

Techniques used for diagnosis are Ultrasonography imaging,  radiography, serological tests, Biopsies and ultrasound-guided punctures

7. Ascariasis

Ascariasis is a infection caused by Ascaris lumbricoides parasite in the small intestine and it is also a species of roundworm. Infection is caused by uncooked food and contaminated water with Ascaris eggs from feces. Also it can passed directly through person to person.

The infected Ascaris eggs will enter into the intestine and the larvae will move to the lungs through bloodstream. After maturing the worm will come to the throat, when we cough up or swallow the worm will go back to the intestine. Then they will mate and lay eggs in the intestine.

If the number of worms is less then it will show no symptoms, but if it is higher it will show  shortness of breath and fever in the beginning of the disease. The symptoms after the first stage are abdominal swelling, abdominal pain, and diarrhea. Diagnosis can be done by imaging tests like X-Ray, CT scans, Ultrasounds, MRI scans, Endoscopy.

8. Trichinosis

Trichinosis is a disease caused by  Trichinella type parasite which is also a species of roundworm. This is infected through uncooked meat especially pork and also occur from bear and dog meat. The initial symptoms of infection are diarrhea, abdominal pain, and vomiting.

When larvae migrates to lungs it will leads to swelling of the face, inflammation of the whites of the eyes, fever, muscle pains, and a rash. Minor infection may cause no symptoms. This infections can be treated through medication. In some cases it will disappear after few months without any complications. To prevent this only use fully cooked meat or use a food thermometer.

9. Microsporidia

Microsporidia is a group of unicellular parasites that will result in Microsporidiosis disease. It can produce infective spores and this spores are the main reason for Microsporidiosis disease. This bacteria will not cause disease in healthy people.

This disease is mostly seen in people with immune system deficiency like HIV patients, organ-transplant recipients, people with diabetes, cancer patients, and those who are chronically on steroids. But  for exceptional cases the healthy people also get infected. Treatment for this disease are medication and supportive care.

Symptoms of Microsporidiosis disease are,

Intestinal symptoms:- chronic diarrhea, wasting, malabsorption, and gallbladder disease.

Lung symptoms:- cough and difficult, labored breathing.

urinary tract and Gastric symptoms:- kidney failure, bladder inflammation, and bowel perforation.

Eye infection:- inflammation of the cornea and conjunctiva,  eye pain, eye redness, or blurry vision.

10. Toxoplasma Gondii

Toxoplasma Gondii is the most famous parasite that will cause one of the most common parasitic infection called Toxoplasmosis. It is a parasitic infection mostly found in warm-blooded animals. It is one of the most common parasite in developed countries. this protozoan organism is discovered by Nicolle and Manceaux in 1908.

This disease has a high chance of infecting people with a weaker immune system, such as patients suffering from HIV/AIDS. Also it is a very dangerous disease because it might change someone’s brain chemistry, it will leads to Brain cancer and people committing suicide.

This parasite most commonly found in cats (definitive host), because Toxoplasma gondii can sexually reproduce only within the cats.It can also infect humans. This is mainly infected through by consuming raw or under cooked meat, ingesting water, soil, vegetables, or anything  containing Toxoplasma gondii tissue cysts.

Generally there is no symptom, Except for pregnancy. Approximately 33% humans are infected by this parasite and it is also a very major concern to the scientific and medical community.There is no  approved human vaccine exists against Toxoplasma gondii. Research on human vaccines is ongoing.


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