Pinworm
Scientific Name: Enterobius vermicularis
Order & Family: Order: Oxyurida, Family: Oxyuridae
Size: Males: 2-5 mm long, Females: 8-13 mm long.
Natural Habitat
Human gastrointestinal tract, specifically the large intestine and rectum.
Diet & Feeding
Epithelial cells, bacteria, and intestinal contents within the human host.
Behavior Patterns
Nocturnal migration where gravid females move to the perianal area to lay thousands of eggs, causing itching.
Risks & Benefits
Causes enterobiasis, leading to intense anal itching, irritability, and disturbed sleep; no known benefits.
Identified on: 12/27/2025