What is crab lice and how do you get them?

Pubic lice. Pubic lice usually are spread through sexual contact and are most common in adults. Pubic lice found on children may be a sign of sexual exposure or abuse. Occasionally, pubic lice may be spread by close personal contact or contact with articles such as clothing, bed linens, or towels that have been used by an infested person. A misunderstanding is that pubic lice are spread by toilet seats.