Hair loss is the result of hair falling out of the head or the body, typically at least where hair is involved. Typical causes of it vary from stress to family genetics to a change in hormones or from a medical condition. However in transformations from humans in fiction, hair loss can be seen whenever they would change into a species that doesn’t have hair like a human, though this will sometimes, if not rarely, be never present if their changed form where to have a set of it.