5. Epidermoid Cyst Epidermoid cysts inside the belly button can become infected and rupture, causing a foul-smelling, thick, white or yellow discharge.

Ingrown hair cysts are often treatable at home without medical intervention, but you should see a healthcare provider for cysts that become infected.

Cysticercosis occurs when the tapeworm larvae infect human tissues, Ghali shared. “Humans become infected with T. solium by ingesting cysts that can be found in undercooked pork,” Ghali wrote.

An ER doctor explained how a patient suffered a tapeworm infection, with an X-ray showing the larvae all over his pelvis and legs.