Is this permanent hair loss?

If the hair loss is caused by stress, nutritional deficiency and poor physical/emotional health then there is a very good chance of regrowth and repair of the hair growth cycle. The harsh chemicals used in bleaching can cause hair loss but more often would cause hair breakage. Did you notice any burning or irritation to your scalp during or after the process? Most female hair loss is temporary and reversible. Hair loss can become permanent is if the follicles are damaged or scarring has occurred. This can happen from chemical burns or scalp infection.