Sexually Transmitted Diseases (STD) are the disease transmitted through sexually contact. It is also called STI (Sexually Transmitted Infection). They are transferred from human to human through human sexual behavior like vaginal sex, oral sex and anal sex. Some STDs can transfer through infected syringe needles.
Cause
STDs are caused by different micro organisms like bacteria, fungus, virus, protozoa, and different parasites. Some of them are illustrated below.
