the lifetime prevalence of trichotillomania is estimated to be between 0.6% and 4.0% of the overall population. With a 1% prevalence rate, 2.5 million people in the U.S. may have trichotillomania at some time during their lifetimes.
Trichotillomania is diagnosed in all age groups; onset is More Common:
during preadolescence and young adulthood, that puts the age of onset between 9 and 13 years of age, and a notable peak at 12–13.
Among preschool children the genders are equally represented; there appears to be a female predominance among Preadolescents to young adults, with between 70% and 93% of patients being female. Among adults, females typically outnumber males by 3 to 1.
"Automatic" pulling occurs in approximately three-quarters of adult patients with Trichotillomania.
Hair removal, also known as epilation or depilation, is the deliberate removal of body hair.
Hair typically grows all over the human body. Hair can become more visible during and after puberty and men tend to have thicker, more visible body hair than women. Both men and women have visible hair on the head, eyebrows,eyelashes, armpits, pubic region, arms, and legs; men also have thicker hair on their face, abdomen, back and chest. Hair does not generally grow on the lips, the underside of the hands or feet or on certain areas of the genitalia;
