STDs are a series of infectious diseases that are mainly transmitted through sexual contact, so they are acquired through sexual contact, some STDs can be transmitted in other ways than through sexual contact, as follows: 1, AIDS, syphilis, etc., can be transmitted vertically through mother to child or through blood; 2, some STDs can be transmitted through indirect contact in addition to sexual contact, such as The lice can be spread through cross-infection of bed sheets or underwear; 3, some STDs such as condyloma acuminata can be spread through shared utensils or underwear. Regardless of the mode of transmission, once the disease is acquired, timely treatment is necessary.