You can usually see new hair growth in about 3 days after shaving. Shaving only removes all the hair from the top of the scalp, but the hair roots inside the hair follicles are not damaged. Hair grows every moment and has its own growth period and resting period. After the hair is cut off, you can see the new hair stubble growing out in about 3 days. When the hair stubble first grows out, the surface of the scalp may have a slight itching symptom, which is very normal and is a symptom of slight irritation of the surrounding skin tissue when the hair grows, so there is no need to worry too much. As time goes by, the hair can gradually grow longer and this abnormal symptom will gradually disappear. If you feel that your hair is growing slowly, you can often massage your scalp to promote blood circulation in the scalp area, which can accelerate hair growth to a certain extent.