What causes a lot of hair to fall out when you wash your hair

Hair loss when washing hair may be a lot of hair growth in the rest period, bad shampooing methods, nutritional deficiencies and other reasons.
1. Hair growth in the rest period: hair growth cycle includes the growth period, the degeneration period and the rest period, the rest period of the daily hair loss in the 100 roots is a normal physiological phenomenon.
2. Bad shampooing methods: a lot of hair loss during shampooing may be related to overheating of the shampoo water, excessive stimulation of the shampoo or pulling the hair to cause hair loss.
3. Nutritional deficiencies: hair growth also depends on the support of nutrients, human nutritional deficiencies, the hair can not get nutritional support and thus growth retardation, easy to fall out of the phenomenon.
If you lose a lot of hair when you wash your hair, you need to go to the hospital in time to clarify the cause, and the doctor will issue individualized treatment plan according to the situation.