Hypersexuality, also known as compulsive sexual behavior disorder or sexual addiction, is a condition where a person has an intense urge or desire to engage in various kinds of sexual activity that they cannot control. This behavior can cause distress and problems in different areas of their life, such as their health, job, relationships, or other parts of their life. Hypersexual behaviors are viewed variously by clinicians and therapists as a type of obsessive-compulsive disorder (OCD) or "OCD-spectrum disorder," an addiction, or a disorder of impulsivity. Some signs that a person may have compulsive sexual behavior include repeated and intense sexual fantasies, urges, and behaviors that take up a lot of their time and feel as if theyre beyond their control, feeling driven or having frequent urges to do certain sexual behaviors, feeling a release of tension afterward, but also feeling guilt or deep regret.

Several neurological conditions such as Alzheimers disease, autism, various types of brain injury, Klüver–Bucy syndrome, Kleine–Levin syndrome, and many neurodegenerative diseases can cause hypersexual behavior. Also, treatment of Parkinsons disease with certain medicines may cause compulsive sexual behavior.

The American Psychiatric Association’s Diagnostic and Statistical Manual, 5th Edition (DSM-5) does not recognize hypersexuality as an official disorder or diagnosis. However, healthcare professionals may refer to hypersexuality as compulsive sexual behavior disorder, excessive sexual behavior, sexual addiction, or hypersexuality disorder.