Trichotillomania

Age: 6 years
Gender: Male
Site: Scalp
Duration: 6 months
History: Habit of hair pulling
Findings:
* An asymptomatic, large, non-scarring patch of hair loss
* The hairs are cut with different length above the surface of the scalp
* No redness (inflammation) or scales
Diagnosis: Primarily clinical
Investigations: Direct and KOH examination of hair under LM are negative (To exclude tinea capitis)
Treatment: Reassurance and explanation of the nature of this hair-pulling obsessive-compulsive disorder
Response: Full regrowth of hair within 3 months