Besides genetics, several conditions cause hair loss. You may be able to address hair loss by treating the underlying cause. Some of these conditions include: Alopecia areata, Celiac disease, Diabetes, Eating disorders, Trichotillomania, Anemia, Lichen planus, Lupus, Sarcoidosis, Scalp psoriasis, Syphilis and Thyroid conditions.
If you have any of these conditions, it is wise to consult your doctor and receive treatment. As your health improves, your hair may regenerate.