Adults parasitize the upper segment of human small intestine and fix the intestinal wall with the head segment. The pregnant node often falls off from the chain body alone or 5 ~ 6 nodes are connected together, and it is discharged with feces, leaving the pregnant node of the worm body, and there is still some activity, which can cause the eggs to disperse due to extrusion and rupture. When an egg or pregnancy node is swallowed by an intermediate host, such as a pig or a wild boar, and the egg is subjected to digestive juice in the small intestine for 24-72 hours, the embryo membrane of the egg breaks, the hexagamete larva escapes, and then burrows into the small intestine wall under the action of its small hook and secretion, and reaches various parts of the host body through blood circulation or lymphatic system. At the parasitic site, the worm grows up gradually, and the intermediate cells dissolve to form a cavity filled with liquid. After about 10 weeks, the cysticercus matured. Cysticercus cellulosae is parasitic on the muscles that exercise more, especially the medial thigh muscle, followed by the deep psoas, scapula, diaphragm, myocardium and tongue muscle. , but also parasitic in the brain, eyes and other places.