The Mental Health Foundation says anger is often dealt with only after someone has committed an aggressive crime.
Almost a third of 2,000 people polled said they had a friend or family member who struggled to contain their anger.
The charity is calling for more research and education into anger and earlier intervention in problem cases.
Relationships
Chronic and intense anger has been linked to heart disease, cancer, stroke, colds and flu as well as depression, self-harm and substance misuse, the charity's Boiling Point report said.
And anger is more likely to have a negative effect on relationships than any other emotion.
The foundation said courts may refer someone for anger management training but services need to intervene sooner.
GPs say they have few options for helping patients who come to with anger problems.
A YouGov survey of 2,000 people found 12% of people say they have trouble controlling their anger.
One in four says they worry about how angry they sometimes feel and 64% think people in general are getting angrier.
Powerful emotion
But most people would not know where to seek help.
Mental Health Foundation chief executive Dr Andrew McCulloch said: "In a society where people can get help for depression and anxiety, panic, phobia, eating disorders and a range of other psychological and emotional problems, it seems extraordinary that we are left to fend for ourselves when it comes to an emotion as powerful as anger.
