Hair loss follicle damage can not grow back. Causes of scalp hair follicle damage generally have trauma infection, friction, pulling and extrusion, etc., hair follicles are damaged after permanent damage, and does not have the ability to regenerate, can not grow out again, need to be extracted through the extraction of healthy follicles, to hair follicle implantation of the hair area, so as to achieve the effect of restoration. Due to the scalp follicle damage caused by more factors, especially from the outside world, so in daily life need to do a good job of daily care of the head, to avoid serious scalp damage, if due to the follicle damage affects the appearance of the hair follicles, if necessary, you can go to a professional hospital to carry out hair transplantation surgery, in order to improve the situation of thinning hair. After the hair transplant surgery, you also need to pay attention to good care work, effective activation of hair follicles, so as to promote better growth of hair follicles and hair.