The human pinworm, a small intestinal roundworm often associated with nighttime itching. Explore its illustrative 3D model, human context, and sources.
The human pinworm, a small intestinal roundworm often associated with nighttime itching. Some infections cause no symptoms; children and their household contacts are commonly affected.
Some infections cause no symptoms; children and their household contacts are commonly affected.
An adult female with a long pointed tail and enlarged cephalic expansions. Gut position is schematic; reproductive anatomy and eggs are omitted from the main specimen. Colours encode structures; they are not measured biological hues. Each specimen is independently enlarged. Independent scientific review remains pending.
Source check: 2026-09-21. Educational content; independent scientific review remains pending.