Gambling is risking something of value (such as money or other goods) on an event whose outcome depends on chance. It occurs in many forms, including lotteries, casinos, sports betting, and even online video games that contain gambling elements. The activity can be enjoyable for most people, but it can also lead to problems. These may include:

The most serious problem associated with gambling is compulsive or pathological gambling. The Diagnostic and Statistical Manual of Mental Disorders defines a person who meets the criteria for gambling disorder as having an uncontrollable urge to gamble and does so to an extent that it causes distress or impairment in their life. Gambling disorder is most commonly seen in adults, but it can also be found among children and teenagers.

Many people are able to control their gambling habits and stop on their own. However, others require professional help. The most severe cases of gambling addiction are treated in residential or inpatient facilities, which offer round-the-clock support and supervision. Treatment may include family therapy, marriage and financial counseling, and individual and group therapy for underlying mood disorders like depression or anxiety, which are often triggered by or made worse by gambling. Some individuals also find it helpful to learn skills for managing their finances and credit, such as budgeting, paying bills on time, and keeping a spending journal. It is important to set limits and stick to them, especially when on a casino floor.