Bladder worm

Bladder worm is a tapeworm in its immature form, such as in the form of larvae. It lives in the flesh of the secondary host, and after the flesh is eaten by a primary host, it grows inside the body, in the intestine, moving to muscles as well as inside the brain. It is a small, sac-like vesicle resembling a bladder, hence it is known as bladder worm. It is filled with fluid, in which the main body of the larva resides.