If cysticerci are present in areas that do not give rise to obvious clinical manifestations, the parasitic infection may remain undetected and can remain latent in the body for a long period of time, so that brain cysts can remain latent in the body for decades. Cysticercosis, or porcine cysticercosis, is a disease in which the larvae of the pork tapeworm parasitize various tissues and organs of the human body, causing various damages. Parasitic in the central system is called cerebral cysticercosis, cysticercosis is the more serious of the cerebral cysticercosis. Cerebral cysticercosis specific incubation period has a long and short, generally can survive 3 ~ 10 years long, to incubate 1 month to 5 years of the majority; if the presence of cysticercus can not cause obvious clinical symptoms, may have been unable to find cysticercus infection, so there can be a long period of incubation phenomenon, the longest incubation period of up to 30 years. Cysticercosis refers to endogenous infection of pork tapeworm patients, or healthy people accidentally eat water or food contaminated with pig tapeworm eggs, causing pig tapeworm eggs to enter the stomach by a variety of ways of tapeworm eggs, hatch into cysticercus in the duodenum after 9-10 weeks, cysticercus through the intestinal wall, into the body circulation and choroidal and into the central nervous system, resulting in a variety of damages. Some of them can be without clinical manifestations or can cause diseases such as epilepsy, increased cranial pressure and infectious encephalitis. If cysticercosis is suspected, it should be promptly diagnosed and treated in a hospital.