There are many reasons why the scalp is still numb after one month of hair transplantation, such as poor blood circulation, local breakage, and wounds in the healing stage. 1. Poor blood circulation: the process of hair transplantation may cause some trauma to the local blood circulation to a certain extent, accompanied by redness and swelling, so there may be a month of hair transplantation scalp or numbness. 2. Local breakage: although hair transplantation is a minimally invasive surgery, the process may damage the nerves and blood vessels, so it will cause numbness, and even during the recovery period, there will be numbness. 3. The wound is in the healing stage: the process of hair transplantation will have a certain impact on the local skin, so some patients in the recovery period of the wound, there may be numbness. There are many reasons why the scalp is still numb after one month of hair transplantation, if the symptoms can not be relieved for a long time, it is recommended that the patient go to the hospital in time to improve the examination and take standardized treatment according to the doctor’s instructions, and do not ignore the symptoms, so as not to cause adverse consequences.