Gambling disorder
Persistent gambling that causes real harm, diagnosed when at least four of nine signs, such as chasing losses, lying about gambling, needing bigger stakes or relying on others to cover debts, appear within 12 months. It is a treatable condition.
What drives it
Gambling shifts mood fast: the near miss and the unpredictable win lift boredom, stress or low mood, and chasing losses turns a bad night into a plan to win it back. For identification, the money trail is the clearest evidence, because borrowing, missing sums and hidden accounts show before the person says anything.
How it shows
Work
Betting apps open between meetings, live odds checked in the toilets, requests for salary advances, borrowing from colleagues, sudden interest in petty cash or expense claims, tiredness after late sessions, and a mood that tracks wins and losses rather than the work.
Relationships
Money that can’t be accounted for, a loan or new card the partner finds by post, bills unpaid while the person insists they are handled, anger when asked, promises to stop after each crisis, and family members clearing debts more than once.
Self
You think about the next bet while doing something else, you go back to win back what you lost, you have lied about how much you spent, and the lift from a win lasts less time than it used to.
What tells it apart
Behavioural addiction: Behavioural addiction is the umbrella. Gambling disorder is the one member with full DSM-5 criteria, and the one where debt and chasing losses sit at the centre.
Bipolar disorder and hypomania: Gambling sprees that happen only during manic episodes, with little sleep, fast speech and other big spending, are more likely part of mania, and DSM-5 excludes them from this diagnosis.
Overconfidence in investing: Overconfident trading can look similar, but the person can usually stop when losses mount. Chasing losses, hiding them and borrowing to keep going point more towards gambling disorder, whatever the platform calls itself.
A test
Ask whether they have ever gone back another day to win back losses, and whether anyone knows the full amount. Chasing plus secrecy may be the disorder, and because debt and suicide risk rise together in gambling, specialist help early matters.
Questions to carry
- After the last big loss, what did the person do in the next 24 hours: stop, tell someone, or try to win it back?
- What was I feeling in the hour before I placed my last bet?
How strong the research is
strong. The criteria are reliable and well tested, and DSM-5 placed the diagnosis beside the substance addictions in 2013. CBT helps in the short term, but a Cochrane review (Cowlishaw et al., 2012) rated the trials low quality with too few follow-ups to show how long gains last, and a Swedish register study found suicide deaths about 15 times the general rate among people treated for it (Karlsson and Håkansson, 2018).
Where it comes from
Pathological gambling entered DSM-III in 1980 as an impulse-control disorder. Renamed gambling disorder and moved into the substance-related and addictive disorders chapter in DSM-5, 2013.