STDs (sexually transmitted diseases) are often divided into two categories viral and bacterial. Viral STDs are HIV, hepatitis B, Genital herpes, HPV, Molluscum Contagiosum etc.
HIV (human immunodeficiency virus) - is transmitted in body fluid and targets helper T cells of the immune system.
hepatitis B - is usually spread by sexual contact and its virus is more contagious than the AIDS virus. hepatitis B is linked to liver cancer
genital herpes - is caused by the herpes simplex virus, resulting painful blisters on the external genitals of males and female.
HPV (The human papilloma virus) - is marked with symptoms of Warts on penis, vulva, urethra, labia, around and in the anus, or in vagina or cervix, there is risk factor for cancers of cervix
molluscum contagiosum - is a skin disease marked by raised, pearl-like, fluid-filled bump s on the skin
Note: Bacterial STDs are, bacterial vaginosis, chancroid, chlamydia, gonorrhea, syphilis, lymphogranuloma, mycoplasma genitalium