Louse

Found on the human body, specifically the scalp for head lice, or on clothing and bedding for body lice.

Obligate parasites that feed exclusively on human blood several times a day.

Lice cannot jump or fly; they spread through direct head-to-head contact or sharing personal items. They lay eggs (nits) that are glued to hair shafts or clothing fibers.

Risks include intense itching, scalp irritation, and secondary skin infections from scratching. Body lice can transmit certain bacterial diseases, though head lice are primarily a nuisance rather than a major disease vector.