Human Tapeworm Segment (Proglottid)
Scientific Name: Taenia spp. (e.g., Taenia saginata or Taenia solium)
Order & Family: Order: Cyclophyllidea; Family: Taeniidae
Size: Segments are typically 10–20 mm long and 5–10 mm wide, appearing as small, white, grain-like objects.
Natural Habitat
The adult tapeworm lives in the human small intestine; individual segments are shed and exit the body via feces.
Diet & Feeding
Absorbs pre-digested nutrients directly from the host's intestinal tract through its skin (tegument).
Behavior Patterns
Gravid segments (proglottids) break off from the tail of the worm and are passed in stool. These segments can sometimes crawl or move independently for a short period to disperse eggs.
Risks & Benefits
Risks include abdominal pain, weight loss, and digestive upset (Taeniasis). In the case of T. solium, ingesting eggs can lead to cysticercosis, a serious condition where larvae form cysts in muscles or the brain. There are no benefits to humans; medical consultation and treatment with antiparasitic medication are required.
Identified on: 3/13/2026