Tapeworm Segment (Proglottid)
Scientific Name: Dipylidium caninum (typically)
Order & Family: Order: Cyclophyllidea, Family: Dipylidiidae
Size: Typically 1/4 to 1/2 inch (similar to a grain of rice or cucumber seed)
Natural Habitat
Intestines of host animals (dogs, cats) and passed in feces or found on bedding/fur
Diet & Feeding
Absorbs nutrients directly through its skin from the host's digestive tract
Behavior Patterns
These segments detach from the adult worm and exit the host. When fresh, they can move by expanding and contracting. When dried, they look like sesame seeds.
Risks & Benefits
Parasitic risk to pets causing irritation and potential weight loss; slight zoonotic risk to humans if infected fleas are accidentally ingested.
Identified on: 2/27/2026