Losing 100 hairs a day is generally normal, no need to be overly anxious. It is normal to lose 100 hairs a day, the organism will carry out metabolism every day, there is also a life cycle of hair, generally divided into the growth period, resting period and recession, in the resting period there will be hair loss, as long as the hair loss does not exceed 100 a day is normal. If the amount of hair loss per day more than 100 or show patchy hair loss, is a pathological hair loss, it is recommended to go to the hospital in time for examination and diagnosis, clear cause to take targeted measures to avoid hair loss continues to aggravate.