Body lice are parasitic insects. They spread through physical contact with a person who has body lice or though contact with their clothing. They are most common in homeless people. Find out how to kn READ MORE

Sexual abuse is one form of child abuse. It includes a wide range of actions between a child and an adult or older child. Learn the facts. READ MORE

Chlamydia is a common sexually transmitted disease contracted by men and women. Chlamydia usually does not have symptoms. Learn about tests and prevention. READ MORE

Men with erectile dysfunction (ED), or impotence, have trouble getting or keeping an erection. It is more common in older men. Learn about treatment. READ MORE

Genital herpes is a sexually transmitted disease caused by a herpes simplex virus (HSV). Learn about symptoms, testing, prevention, and treatments. READ MORE

Genital warts are a sexually transmitted disease caused by the human papillomavirus (HPV). Learn about what they look like, prevention, and treatment. READ MORE

Gonorrhea is a sexually transmitted disease that men and women can get. It doesn't always cause symptoms. Read about testing, prevention, and treatment. READ MORE

Learn about herpes simplex, a contagious infection caused by herpes simplex virus (HSV). Oral herpes affects the mouth. Genital herpes affects the genitals. READ MORE

Human papillomavirus (HPV) is a group of more than 200 related viruses. Some of them are spread through sexual contact. There is a vaccine to help prevent HPV. READ MORE

Pelvic pain is pain in the area below your belly button. It can affect women and men and may be acute or chronic. Learn about the causes and treatments. READ MORE

Penis disorders can cause pain and affect a man's sexual function and fertility. Read about the types of problems, including symptoms and treatments. READ MORE

Puberty is the time in life when a boy or girl becomes sexually mature. It causes physical changes and affects boys and girls differently. READ MORE