In most cases that begin with a small number of patches of hair loss, hair grows back after a few months to a year. In cases with a greater number of patches, hair can either grow back or progress to<unk>  totalis or, in rare cases,<unk>  universalis. No loss of body function occurs, and the effects of<unk>  are psychological (loss of self-image due to hair loss), although these can be severe. Loss of hair also means the scalp burns more easily in the sun. Patients may also have aberrant nail formation because keratin forms both hair and nails. Hair may grow back and then fall out again later. This may not indicate a recurrence of the condition, but rather a natural cycle of growth-and-shedding from a relatively synchronised start; such a pattern will fade over time. Episodes of<unk>  before puberty predispose to chronic recurrence of the condition.<unk>  can be the cause of psychological stress. Because hair loss can lead to significant changes in appearance, individuals with it may experience social phobia, anxiety, and depression.
Alopecia areata
Hair loss
Alopecia mucinosa
Trichotillomania
Alopecia universalis
Alopecia totalis
Loose anagen syndrome
Alopecia neoplastica