Diseases and Conditions

Pubic lice (crabs)

Overview

Pubic lice, commonly called crabs, are tiny insects found in your genital area. They are a different type of louse from head lice and body lice. Measuring 1/16 inch (1.6 millimeters) or less, pubic lice received their nickname because their bodies resemble tiny crabs.

The most common way to get pubic lice is through sexual activity. In children, pubic lice may be found in the eyebrows or eyelashes and can be a sign of sexual abuse. However, it may be possible to catch pubic lice after sharing clothing, bedsheets or towels with an infected person.

Pubic lice feed on your blood, and their bites can cause severe itching. Treatment includes applying over-the-counter creams and lotions that kill the parasites and their eggs.