What Causes Trichotillomania?
The exact cause of trichotillomania is not yet known, but it appears to involve both biological and behavioral factors. Research has found a potential link between impulse control disorders, such as trichotillomania, and certain brain chemicals called neurotransmitters. Neurotransmitters help nerve cells in the brain send messages to each other. An imbalance of these chemicals can affect how the brain controls impulses. It also is believed that stress can trigger the impulsive behavior, and that some people continue the behavior out of habit. In some cases, people with trichotillomania also have other disorders such as depression or anxiety. This suggests that there might be a link between these disorders and the development of trichotillomania. In addition, the risk of developing trichotillomania is slightly higher in people who have relatives with the disorder, suggesting that a tendency for the disorder may be inherited.
