If someone you love can't control sexual thoughts or behaviors despite the harm they cause, it may be more than a high sex drive. It could be compulsive sexual behavior.
The term "sex addiction" is not an official DSM-5 diagnosis. But the World Health Organization recognizes Compulsive Sexual Behavior Disorder (CSBD) in the ICD-11. People experiencing it often struggle to control urges that interfere with relationships, work, finances, or emotional well-being.
Compulsive sexual behavior involves persistent sexual thoughts, urges, or behaviors that become hard to control despite harmful consequences. What families notice first is usually a change in behavior: secrecy, excessive time spent pursuing sexual activity, neglected responsibilities, or continued risky behavior despite relationship conflict, financial trouble, or emotional distress. Over time it can affect intimacy, self-esteem, employment, finances, and overall quality of life.