It is an endoparasite flatworm with a very small head, neck and long segmented body. They belong to the group called platyhelminthes. 

Tapeworm is found in pigs and cattle. The head also known as scolex has suckers and hooks by which it holds firmly to the intestinal wall of its primary host.

Man is the primary host and pig is the secondary host. The body segments known as proglottides are arranged in a long row formed from the neck. At the neck region, the proglottides are small and young while those far from the neck are the largest and oldest.

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