Left untreated, adult tapeworms can live in a host body for up to 30 years. Their length varies, but they can grow to be anywhere from 6 to 22 feet.
Tapeworm infections usually don't cause complications. Problems that may happen include: Anemia. Long-term infection with a fish tapeworm may lead to the body not making enough healthy red blood cells, also called anemia.
If meat or fish have larvae cysts and are undercooked or raw, the cysts can travel to the human intestine, where they can mature into adult tapeworms. An adult tapeworm can : live as long as 25 years.
Some tapeworms can live up to 30 years and grow up to 30 feet long. You might hear your healthcare provider refer to your tapeworm infection as “taeniasis.” This term refers to an infection by tapeworms from the genus Taenia.
In rare cases, tapeworm segments become lodged in the appendix, or the bile and pancreatic ducts. Infection with T. solium tapeworms can result in human cysticercosis, which can be a very serious disease that can cause seizures and muscle or eye damage. Taenia saginata does not cause cysticercosis in humans.
Left untreated, adult tapeworms can live in a host body for up to 30 years.
Once inside the body, the tapeworm head attaches to the inner wall of the intestines and feeds off the food being digested. Pieces of the tapeworm break off and come out of the body in feces (poop), along with the eggs they contain.
In rare cases, worms can cause a blockage in the intestine. If pork tapeworm larvae move out of the intestine, they can cause local growths and damage tissues such as the brain, eye, or heart. This condition is called cysticercosis.
If you have a tapeworm infection, you may not have any symptoms. But some people have nausea, stomach pain, weakness, or diarrhea. You might notice a change in appetite (eating more or less than usual). And since the tapeworm keeps your body from absorbing nutrients from food, you may lose weight.
All cestodes cycle through 3 stages—eggs, larvae, and adults. Adults inhabit the intestines of definitive, or final, hosts, which are mammalian carnivores, including humans. Several of the adult tapeworms that infect humans are named after their main intermediate host (the fish, beef, and pork tapeworms).
Although adult tapeworms in the intestine usually cause no symptoms, some people experience upper abdominal discomfort, diarrhea, and other symptoms. Occasionally, people with a tapeworm can feel a piece of the worm move out through the anus or see part of the ribbon-like tapeworm in stool.
The oldest examples of tapeworms with complex life cycles are contained in shark coprolites from the Permian Period and are around 259 millions years old. Unlike the simpler flatworms, these worms used several different species as hosts to allow them to spread as effectively as possible.
The cure rate for tapeworm infestation is greater than 95% in patients who receive appropriate treatment.
Once ingested, cysticerci attach to the small intestine and develop into adult tapeworms over the course of 2 months. The adult tapeworms produce proglottids that mature, detach, and migrate to the anus and are then passed in the feces.
The adult tapeworm is made up of many small segments, called proglottids, each about the size of a grain of rice. Adult tapeworms may measure 4-28 inches in length. As the tapeworm matures inside the intestine, these segments (proglottids) break off and pass into the stool.
In humans, infection by Echinococcus granulosus is called Cystic Hydatid Disease and infection by Echinococcus multilocularis is called Alveolar Hydatid Disease. These conditions are very serious and if left untreated will cause severe symptoms and can be fatal.
Approximately 50 million persons are infected with both parasites worldwide; some 50,000 die of cysticercosis annually. In the US, laws governing feeding practices and inspection of domestic food animals have largely eliminated the problem of tapeworm.
Eat more raw garlic, pumpkin seeds, pomegranates, beets, and carrots, all of which have been used traditionally to kill parasites. In one study, researchers found that a mixture of honey and papaya seeds cleared stools of parasites in 23 out of 30 subjects. Drink a lot of water to help flush out your system.
Pork tapeworm (Taenia solium) and beef tapeworm (Taenia saginata) can be acquired from eating undercooked meat containing cysts of the tapeworm larvae. These infections are not common in Australia, and are usually only acquired overseas.
Tapeworms (Cestodes)
After ingestion, they develop into larvae, which can move out of the intestines and form cysts in different tissues, for example, lungs and liver. The infection of tapeworms in the intestine usually causes no symptoms.
Seizures and headaches are the most common symptoms. However, confusion, lack of attention to people and surroundings, difficulty with balance, excess fluid around the brain (called hydrocephalus) may also occur. The disease can result in death.