the signs of hair loss include: in men thinning hair on the scalp a receding hairline or a horseshoe-shaped pattern that leaves the crown of the head exposed. in women thinning of hair in general but mainly at the crown; complete balding is rare. in children or young adults sudden loss of patches of hair; known as alopecia areata. complete loss of all hair on the body; a rare disease called alopecia universalis. especially in children patches of broken hairs and incomplete hair loss usually on the scalp but sometimes involving the eyebrows; the child is most likely rubbing or pulling out hair a condition called trichotillomania. excessive shedding of hair but not complete baldness after various illnesses and drug treatments rapid weight loss anemia stress or pregnancy; a condition known as telogen effluvium.
what are the signs of hair loss?