The crab louse or pubic louse (Pthirus pubis) is an insect that is an obligate ectoparasite of humans, feeding exclusively on blood. [2] The crab louse usually is found in the person's pubic hair.

Dec 18, 2025 · Measuring 1/16 inch (1.6 millimeters) or less, pubic lice are called crabs because their bodies look like tiny crabs. The most common way to get pubic lice is by having sex.

Jun 4, 2024 · Pubic lice infestation is diagnosed by finding a "crab" louse or nits on hair in the pubic region or, less commonly, elsewhere on the body. These areas include the eyebrows, eyelashes, …

Feb 6, 2023 · Pubic lice, also called crabs, are tiny insects that live on your pubic hair. They cause itching but are treatable with special shampoos or creams.

Jun 1, 2024 · Pubic lice, or crabs, are tiny parasitic insects. They usually live in the pubic area, and most often spread through sexual contact. Find out how to tell if you have them, and how to treat them.

Nov 11, 2025 · Pubic lice or crab lice - an easy to understand guide covering causes, diagnosis, symptoms, treatment and prevention plus additional in depth medical information.

What are crabs (pubic lice)? Learn about this painful and irritating disease, as well as symptoms, what it looks like, treatment, what to do following treatment, and how to get rid of it.

Nov 21, 2023 · Pubic lice or crab lice are tiny insects that infest a person's pubic hair, although they also can be found on facial hair, armpit hair and eyelashes. The insects look like crabs, and a person with …

Nov 9, 2025 · Pubic lice, also known as "crabs," are a kind of lice that is mainly transmitted through sexual contact. It causes itching in the genital area.

What are pubic lice? Pubic lice — also known as crabs — are small parasites that attach to the skin and hair near your genitals. Crabs aren’t dangerous, and they’re usually pretty easy to get rid of.