Hello. Thanks for writing to us at healthcaremagic Unprotected sex in itself is risk factor for STD s. Many STD s are spread through contact with infected body fluids such as blood, vaginal fluids, or semen. STD s can also be spread through contact with infected skin or mucous membranes, such as sores in the mouth. You may be exposed to infected body fluids and skin through vaginal, anal or oral sex. Almost all the STD s can be transmitted by unprotected sexual contact i.e HIV, Syphilis, Herpes Genitalis, Gonorrhea, Chlamydia, Warts, Molluscum contagiosum etc. Therefore, if you ever notice genital growths or erosions or ulcers, you must immediately check with a specialist. If you are unsure about his past sexual history you must get yourself tested for STD s at appropriate intervals. Even if you assume your boyfriend is clean, I would still suggest that for your own peace of mind you should get yourself tested for STD s at appropriate intervals. Testing for Herpes simplex virus (HSV) can be earliest at 2 weeks; HIV and VDRL at 1 month initially and then repeat tested at 3 months. Regards Always practice safe sex with a condom!