Risk factors

These factors tend to increase the risk of trichotillomania:

• Family history. Genetics may play a role in the development of trichotillomania, and the disorder may occur in those who have a close relative with the disorder.
• Age. Trichotillomania usually develops just before or during the early teens — most often between the ages of 10 and 13 years — and it's often a lifelong problem. Infants also can be prone to hair pulling, but this is usually mild and goes away on its own without treatment.
• Other disorders. People who have trichotillomania may also have other disorders, such as depression, anxiety or obsessive-compulsive disorder (OCD).
• Stress. Severely stressful situations or events may trigger trichotillomania in some people.

Although far more women than men are treated for trichotillomania, this may be because women are more likely to seek medical advice. In early childhood, boys and girls appear to be equally affected.