More common in African American and may have positive family history. Child pulls their hair out. Often associated with thumbsucking and putting hair in the mouth. Traction causing hair loss. Tight braids or ponytails Telogen effluvium.
Hair stops in resting phase.
Often follows illness or stressful event 6 weeks to 3 months before. The hair loss is diffuse. Common in infants especially in occipital area Alopecia areata. Usually no redness or broken hairs and rapid onset of hair loss in oval area. Etiology unknown but thought to have autoimmune relationship.