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Sexual Health Services | Hauora a Toi Bay of Plenty

Public Service, Sexual Health

Crabs (pubic lice)

Crabs are very small insects which can infect and cause itching in the genital area. Crabs are not the same as the lice found in the scalp.
Crab lice are common and can be transmitted by close bodily contact.

Symptoms
The main symptom of crabs is itching in the groin. Sometimes it is possible to see them in the pubic hair.

Treatment
Pubic lice shampoo can be bought over-the-counter at pharmacies. Sexual partners should also be treated.
Bedding and clothing should be machine washed or removed from body contact for 72 hours. Other people in the household only need to be treated if they have slept in the bed or used the towels or clothing of the person who is infected.

This page was last updated at 10:10AM on May 15, 2025.