阴虱
small insects that can live in the hair around the sex organs
You can buy special shampoo for treating crabs.
Most people with crab lice do not have any other sexually transmitted diseases.
Doctors debunked the myth that you can catch crab lice from a toilet seat.
She got crabs from that guy she met in the bar.
He didn't realize he had crabs.
See also: crab (DISEASE)