If you swallow semen, you are at risk of contracting sexually transmitted infections (STIs) that can be transmitted through oral contact. Infections such as gonorrhea, chlamydia, syphilis, herpes, and even HIV can be spread through this route if your partner is infected. Although the risk is generally lower than with unprotected vaginal or anal sex, it still exists and should not be ignored. It is important to communicate openly with your partner about sexual health, get tested regularly, and use protection such as dental dams or condoms during oral sex to reduce risks. Your health and safety should always come first.