Pinworm
Scientific Name: Enterobius vermicularis
Order & Family: Order: Oxyurida, Family: Oxyuridae
Size: Females are 8-13 mm long; males are 2-5 mm long
Natural Habitat
The intestinal tract and perianal area of humans, particularly in children
Diet & Feeding
Nutrients found within the human intestinal contents
Behavior Patterns
Nocturnal migration where gravid females move to the perianal folds to lay eggs, causing itching
Risks & Benefits
Highly contagious parasitic infection (enterobiasis) causing itching, sleep disturbance, and irritability; no ecosystem benefits
Identified on: 6/23/2026