Hi, i'm a 21 year old female, so last year in december I got some crab lice, around the 25 th, I last had sex on the 5th of december, anyway I shaved and they went away. However again in february I got them I shaved again and then nothing, also note I had not had sex since december the 5th. Again recently in july I got them again and I shaved, and now there are back again. I've heard that they are passed on through sexual intercourse but how ever I have not been having sex, then how am I getting them.