Tapeworm Segment (Proglottid)
Scientific Name: Taenia species (e.g., Taenia saginata or Taenia solium) or Dipylidium caninum
Order & Family: Order: Cyclophyllidea, Family: Taeniidae or Dipylidiidae
Size: Segments are typically 3 mm to 12 mm long, resembling a grain of rice or a cucumber seed when dried.
Natural Habitat
Intestinal tracts of vertebrates (hosts). The segments are commonly found in feces, on the fur around the anus of pets, or on bedding where pets sleep.
Diet & Feeding
The adult tapeworm absorbs nutrients directly from the host's digestive contents through its skin (tegument); the segments themselves do not eat but contain eggs.
Behavior Patterns
Adult tapeworms live in the intestine. They detach distal segments (proglottids) containing eggs, which exit the host via the anus. These segments can sometimes move or contract slightly when fresh.
Risks & Benefits
Risk: They indicate a parasitic infection. While generally not fatal in healthy pets, they cause discomfort, itchiness (leading to scooting), and weight loss. In humans, certain species (like T. solium) can cause serious conditions like cysticercosis.
Identified on: 2/19/2026