
Community identification
Pubic louse
Pthirus pubis
- Order & Family
- Psocodea: Pthiridae
- Size
- 1.1 to 1.8 millimeters (about the size of a pinhead)
Natural Habitat
Human body, primarily in the pubic hair and surrounding coarse hair like armpits and facial hair
Diet & Feeding
Obligate hematophagy (feeds exclusively on human blood several times a day)
Behavior Patterns
Sedentary insects that remain attached to hair shafts; they move slowly and are primarily transmitted through close physical contact, particularly sexual contact
Risks & Benefits
Cause intense itching (pruritus) and reddish/bluish skin lesions; they can cause emotional distress and indicate the possible presence of other STIs, though they do not typically transmit diseases themselves.