Men may get pubic lice because of unclean sex or indirect contact. 1. Unclean sex: if the sex partner has pubic lice and does not take effective protection measures during sex, it may be transmitted to men through sexual contact, which will cause men to suffer from pubic lice, so men should avoid unclean sex to reduce the probability of the incidence of pubic lice. 2. Indirect contact: men who share some daily necessities, such as bed sheets, towels, bath towels, clothes, etc., with those who suffer from pubic lice may also be infected, resulting in the development of pubic lice. When men develop symptoms of pubic lice, it is recommended that they seek medical examination and treatment to avoid delaying their condition.