The most common form of hair loss is gradual and is called "androgenetic alopecia", which means that a combination of hormones (androgens are male hormones) and heredity (genetics) are needed for the condition to develop. is required. Other types of hair loss include alopecia areata (patches of baldness that usually grow back), telogen effluvium (rapid shedding, fever, or sudden weight loss after childbirth); and traction alopecia (thinning from tight braids or ponytails).