Hair pulling disorder

Trichotillomania is a mental health condition involving recurrent, difficult-to-control pulling out of one’s own hair, resulting in noticeable hair loss and often significant distress. It typically starts in childhood or adolescence. It is classified as a body-focused repetitive behaviour, related to but distinct from obsessive-compulsive disorder.

The exact cause is not fully understood, but it likely involves a combination of genetic predisposition, differences in brain regulation of impulses and stress response, and psychological factors such as anxiety or stress that the behaviour can temporarily relieve. It often develops without a single clear trigger. Family history of trichotillomania or related conditions can increase risk.

Symptoms include repeated pulling out of hair from the scalp, eyebrows, eyelashes, or elsewhere, often with a sense of tension before pulling and relief or satisfaction afterwards, followed sometimes by shame or distress about the behaviour and its visible effects. Hair loss patterns are often patchy and irregular, distinguishing it from other causes of hair loss. Some people pull hair with little conscious awareness, especially during times of stress or boredom.

It is not physically dangerous in most cases, but it can cause significant emotional distress, social anxiety, and in some cases skin damage or infection at the pulling sites. Rarely, ingesting pulled hair (trichophagia) can lead to a hairball in the digestive tract requiring medical attention. With appropriate psychological treatment, many people see significant improvement in symptoms and associated distress.

The main evidence-based treatment is a specific type of therapy called habit reversal training, often within a broader cognitive behavioural therapy approach, which helps identify triggers and build alternative responses to the urge to pull. Some people also benefit from certain medications, particularly if anxiety or another co-existing condition is present. A mental health professional experienced in body-focused repetitive behaviours provides the most effective, tailored treatment.

Many people achieve significant, lasting improvement with appropriate therapy, particularly habit reversal training, though some continue to experience occasional urges or relapses, especially during periods of stress. Ongoing use of the coping strategies learned in therapy helps maintain improvement long-term. Early treatment, particularly in children and adolescents, tends to have a better outlook.

Hair pulling disorder causes patchy hair loss with an irregular pattern and hairs of different lengths due to pulling, often with some awareness of the behaviour, whereas alopecia areata causes smooth, well-defined bald patches due to an autoimmune process, with no behavioural component. A dermatologist can usually distinguish the two by examining the scalp and hair pattern closely. Getting the right diagnosis matters, since the two conditions need completely different types of treatment.

In younger children, hair pulling is sometimes a temporary habit that resolves with gentle behavioural strategies and does not always indicate an ongoing disorder. In older children, adolescents, and adults, it is more likely to represent the persistent condition of trichotillomania and often benefits more from structured therapy. A mental health professional can help assess the pattern and recommend the most appropriate approach for the specific age and situation.

Seek help if hair pulling is causing noticeable hair loss, distress, or is interfering with daily life, work, or relationships. A private psychology or psychiatry assessment for habit reversal therapy can typically be arranged within about one to two weeks. Early intervention, especially in children and teenagers, tends to lead to better long-term outcomes, so it is worth seeking support rather than waiting to see if it resolves on its own.