Pediculosis Pubis

Pediculosis Pubis

Also known as
Crabs, Papillon d'Amour(Butterfly of Love)

Cause by
Phthirus pubis (Crab Louse)


An estimated 3 million new cases a year in the United States.

Mild to intense itching in areas with pubic hair. It may also be possible to see or feel either the lice or the egg cases (nits).

Infections is immediate and can sometimes occur through non-sexual means such as sharing towels or sleeping in the bed of an infected person. After infection, the female lice produce eggs which they attach to hairs at the rate of about three a day for about a week. These eggs hatch in about 7 days and the new lice begin to mate and produce eggs after approximately two weeks. With numbers like these, it is possible to have a sever infestation of lice in a matter of weeks.

Visual inspection for lice or nits.

Uncommon. In certain parts of the world, however, lice can carry various forms of disease.

Prescription or over-the-counter cream, lotion, or shampoo (e.g. Kwell, RID, Nix). All clothes, bedsheets, combs and other personal articles must also be washed or treated since lice can live for over 24 hours once they leave the body.

pubic hair infected with lice
Pubic hair infested with pubic lice.

Pubic louse magnified
Pubic louse magnified.