Tapeworm Segment (Proglottid)

Natural Habitat

Intestinal tract of mammals (primarily dogs, cats, and humans); segments are often found on pet bedding, carpeting, or near the anus of infected animals.

Diet & Feeding

As an internal parasite, the adult tapeworm absorbs nutrients from the host's digested food through its skin (tegument).

Behavior Patterns

Adult worms live in the intestines. These segments (proglottids) break off from the tail end of the worm and are passed in feces or crawl out of the anus. When dry, they look like sesame seeds; when fresh, they may contract and expand.

Risks & Benefits

Parasitic risk to pets and humans. They can cause weight loss, irritability, and anal itching in hosts. Dipylidium caninum is transmitted by ingesting infected fleas. Humans can occasionally be infected, especially children.

Identified on: 2/18/2026