The most common types of hair loss are: Androgenetic Alopecia (Male/Female Pattern Baldness) Telogen Effluvium Alopecia Areata Traction Alopecia Trichotillomania Alopecia Universalis/Totalis Keep in mind that this is not an exhaustive list, and there are other less common forms of hair loss as well. Tests for hair loss can help you identify the type of hair loss you’re experiencing, and get the right treatment for you.