Can a person have crabs and not know my boyfriend have it and trying to say I'm only person hes have sex with and I feel like I don't I think i'll know if I did.

Crabs . Crabs (pubic lice) usually cause itching, though at the very beginning of an infection a patient may be asymptomatic. Although these are usually transmitted by sexual contact, even sharing a towel or close physical contact can spread pubic lice.