Hair loss in women is most common during menopause due to hormone fluctuation. You can check your hormone profile with your physician particularley your thyroid hormone. You can verify if you have low thyroid hormone by measuring under the arm temperature upon rising in the morning which suppose to be 97.8F to 98.2 F or 36.8 C to 37.2 C. Lower temperature below the lower limit indicates hypothyrodism or low thyroid. Higher temperature above the higher limits indicates hyperthyrodism. Both can be corrected by using Bioidential Hormone Treatment, using natural/herbal supplements.