Girls old hair loss, may be physiological alopecia, can also be seen in pathological factors, such as androgenetic alopecia, resting alopecia, scarring alopecia and so on.
1. Physiological hair loss: normal human hair is in active metabolism, every day in the cycle of growth and shedding process. Generally speaking, natural hair loss of not more than 100 hairs per day is a normal phenomenon and does not require special treatment.
2. Androgenetic alopecia: It is the most common type of hair loss and is an androgen-dependent hereditary disease. Hair follicles are over-sensitive to androgens, which causes a gradual shrinkage of the hair follicles and a persistent decrease in the density of hair on the top of the head.
3. Resting phase alopecia: If stimulated by post-surgical and post-pregnancy conditions, hair follicles can be prompted to enter the resting phase in advance, causing synchronized shedding of more hair.
4. Scarring alopecia: various reasons, such as fungal infections, trauma and other factors cause scalp scar formation, hair follicles are destroyed, hair no longer grows, the formation of scarring permanent hair loss.
In short, girls appear old hair loss performance, and daily hair loss is greater than 100, should be timely to the hospital, under the guidance of the doctor for treatment.