Anabolic steroids are man-made substances related to male sex hormones. Medical uses of anabolic steroids include some hormone problems in men, late puberty and muscle loss from some diseases.

Bodybuilders and athletes often use anabolic steroids to build muscles and improve athletic performance. But using them this way is not legal or safe. Abuse of anabolic steroids has been linked with many health problems. They range from unattractive to life threatening and include

• Acne and cysts
• Breast growth and shrinking of testicles in men
• Voice deepening and growth of body hair in women
• Heart problems, including heart attack
• Liver disease, including cancer
• Aggressive behavior

National Institute on Drug Abuse