What causes seasonal hair loss?

Seasonal hair loss is usually a physiological phenomenon, if hair loss serious, it may be caused by diseases, such as androgenic alopecia, infection, etc.

1, physiological phenomenon Seasonal hair

loss is a physiological phenomenon, more common in autumn and winter alternate seasons, because the human scalp microvessels in different seasonal temperatures will change, when the environment becomes cold, scalp microvessels are not active, insufficient nutrition delivered to the hair roots, hair loss can occur.

2, androgenic alopecia

If hair loss is serious, it may be caused by androgenic alopecia, generally related to genetic, androgen levels and other factors, manifested as hair thinning, gradually falling off.

3, infection

If you do not pay attention to personal hygiene, scalp infection bacteria or fungi, can damage hair follicles, forming scars, and then cause hair loss.