So really this article should be named “The Truth About Worms”. The fact is that a worm is a parasite by definition. There are several different worms or parasites that have been discovered. Some of them can only have human hosts and other parasites can live on human hosts or domestic animal hosts. The most common parasites live in the intestinal tract, namely pinworms, tapeworms, and roundworms. Then there are ringworms that exist just below the skin and manifest their presence by creating a hardened patch of skin that has a red scaly appearance in the shape of a ring.
The three most common types of worms found in the body are: the threadworm, pin worm or seat worm (Oxyurix vermicularis), the roundworm (Ascares lumbricoides–lumbrici), and the tapeworm (Bothriocephalus latus or Diphyllobothrium latum). There are other less-common worm types that enter the body, such as hookworms (Ancylostoma duodenal, Nectar Americanus) and a parasite that occurs in the intestines of pigs and rats and human beings (Trichinella spiralis). This parasite produces larvae that forms cysts in skeletal muscles, it thrives on filthy, unsanitary living conditions like pig sties.