You can prevent STDs by using barrier contraception such as condoms during sexual intercourse and getting routinely screened.
Common types of STDs include chlamydia, genital herpes, human papillomavirus (HPV), gonorrhoea, hepatitis B, syphilis and human immunodeficiency virus (HIV).
Common signs of STDs include bumps or sore on the genital area, painful urination, abnormal vaginal discharge and pain.