There are two primary disorders that affect the male reproductive external organs: penis disorders and testicular disorders.

Sexually transmitted diseases (STDs) are diseases that are spread by having sex with someone who has an STD.

Sexual assault can be verbal, visual, or anything that forces a person to join in unwanted sexual contact or attention.

Sex is supposed to be pleasurable, but it's hard to feel intimate with your partner when you have sexual performance anxiety.

Paraphilias are problems with controlling impulses characterized by recurrent, intense sexual fantasies, urges, and behaviors.

Trichomoniasis is a sexually transmitted disease (STD) caused by a small organism called Trichomonas vaginalis.

Human papillomavirus or HPV is an easily transmitted virus that causes genital warts.

Chlamydia is one of the most common sexually transmitted diseases. This overview provides symptoms to watch for and treatment.

If not treated gonorrhea can cause serious and permanent problems in both men and women. Here’s what you should know.

Syphilis can cause long-term health problems like arthritis, brain damage, and blindness -- unless it is treated.

Intercourse pain, or dyspareunia, can cause problems in a couple's sexual relationship.

Don't try to treat a sexually transmitted disease yourself. These diseases are contagious and serious. You must see a doctor.

Gonorrhea causes no long-term problems if it is treated early in the course of the infection before any complications develop.

With treatment, chlamydia should clear up in about a week.

Learn about various types of sex and relationship counseling and therapies.