Tapeworm segment (Proglottid)
Scientific Name: Dipylidium caninum (most common) or Taenia species
Order & Family: Order: Cyclophyllidea / Family: Dipylidiidae or Taeniidae
Size: Segments are typically 3–12 mm long and resemble grains of rice or cucumber seeds. The full worm can reach 15–70 cm.
Natural Habitat
Adults live in the intestines of dogs, cats, and sometimes humans. Segments are found in feces, on pet fur (especially around the anus), or on bedding where pets sleep.
Diet & Feeding
The adult tapeworm absorbs nutrients directly through its skin from the host's digested food within the intestine.
Behavior Patterns
The segments (proglottids) detach from the main worm and are passed or crawl out of the host's anus. When fresh, they can expand and contract; when dried, they look like hard, yellow sesame seeds.
Risks & Benefits
Risks: Indicates a parasitic infection in pets that requires veterinary treatment (dewormer). They can infect humans (especially children) if a flea (the intermediate host) is accidentally swallowed. Benefits: None.
Identified on: 2/14/2026