Frotteurism: A disorder in which the focus of a person's sexual urges is related to touching or rubbing their genitals against the body of a non-consenting, unfamiliar person.
Gender: Being male or female.
Gender identity disorder: A disorder in which a male or female feels a strong identification with the opposite sex.
Genital warts (condyloma): Growths or bumps on the penis, vagina, vulva (vaginal lips), cervix (the opening between the vagina and womb), rectum, or groin. Genital warts are a sexually transmitted disease (STD) which means that they are spread by having sex with an infected person.
Glans: The head of the penis.
Gonorrhea: A serious bacterial infection that is caught by having sex with an infected person. A person can become infected when the bacteria enter any opening in the body, including the penis, anus, vagina, or mouth. Gonorrhea also is called "clap" or "drip."
Hepatitis: A disease involving inflammation of the liver. Most types of hepatitis are caused by viruses, but alcohol, drugs, and other factors also can cause the disease. Hepatitis can cause long term damage to the liver.
Hepatitis B: A type of hepatitis that can be spread from another person who has the virus. Most commonly, it is spread by having sex with an infected person or by sharing a needle.
Herpes: A virus spread by close personal contact, such as kissing or sexual intercourse. There are two types of herpes. The first type is herpes simplex type 1 (or HSV-1). HSV-1 occurs most often on or near the mouth and appears as a blister or cold sore. The second type, herpes simplex type 2 (or HSV-2), occurs most often on or near the sex organs and is sometimes called "genital herpes."
Heterosexual: A person who is attracted to individuals of the opposite gender.
HIV test: A test to look for signs of HIV in the blood.
Homosexual: A person who is attracted to individuals of the same gender.
Hormones: Chemicals that stimulate or regulate the activity of cells or organs.
Hormone therapy: Also known as hormone replacement therapy (HRT). The use of hormones, usually estrogen and progesterone, as a therapy, often used to treat the discomforts of menopause or to replace hormones (especially estrogen) lost after menopause.