You should be talking about the tapeworm of pork, which was learned in the biology textbook of middle school. The shape of the adult is milky white, flat as a belt, thin and slightly transparent, about 2 ~ 4 meters long, with a thin front end and a gradually flat back. The head segment is approximately spherical, with a diameter of 0.6 ~ 1 mm and no pigment.

Man is the ultimate host of Taenia solium and can also be used as an intermediate host. When people eat raw or undercooked pork containing cysticercosis by mistake, the cysticercosis is stimulated by bile in the small intestine, turns out the head segment and adheres to the intestinal wall. After about 2 ~ 3 months, it develops into an adult, and the pregnant stage and eggs are discharged. Adults can live in the human body for more than 25 years.

The clinical symptoms of intestinal taeniasis are generally mild. Finding a lump in feces is the most common reason for patients to seek medical treatment. A few patients have symptoms such as upper abdomen or total abdomen, indigestion, diarrhea and weight loss. Occasionally, the head segment is fixed on the intestinal wall, causing local injury, and a few puncture the intestinal wall or cause intestinal obstruction.

In view of the above, don't eat this pork.