Pubic Louse

Natural Habitat

Exclusively found on humans; primarily inhabits coarse body hair (pubic, armpit, beard, or eyebrows).

Diet & Feeding

Obligate hematophagy; they feed exclusively on human blood several times a day.

Behavior Patterns

The louse has a heart-shaped, crab-like body. They are slow-moving and use their large claws to grasp thick hair shafts. They cannot jump or fly and usually transfer through direct physical contact.

Risks & Benefits

Risks: Causes intense itching (pruritus) due to an allergic reaction to their saliva. They are considered an ectoparasite and a sign of infestation (pediculosis pubis). No known benefits to humans or the ecosystem.

Identified on: 3/12/2026