Half of the scalp numbness, may be the early manifestation of cerebral thrombosis, may also be other reasons, such as the wind blowing cold can be caused, if the spirit of excessive tension and stress may also appear.
1. Cerebral thrombosis: it is an acute cerebrovascular disease, patients generally acute onset, can appear on one side of the limb numbness, at the same time can appear on one side of the scalp numbness, may also appear on one side of the limb weakness, middle-aged and elderly people, most of them have hypertension, diabetes mellitus and hyperlipidaemia medical history, brain CT examination for the brain low-density foci.
2. Cold wind: for example, excessive cold stimulation may cause scalp vasospasm and contraction and local ischemia and hypoxia, which can be manifested as numbness on one side of the scalp, and headache and other symptoms may occur, and can be improved after keeping warm.
3. Excessive stress, excessive tension: may cause sympathetic nerve excitation, can also cause local vasospasm contraction, if the scalp vasospasm contraction, there may be scalp ischemia, manifested as local numbness, at the same time there can be a headache, palpitations and other symptoms. Relaxation and stress reduction can usually improve the condition.
If the above symptoms are not relieved for a long time, you should consult the neurology department in time to clarify the cause of the disease and follow the doctor’s instructions for treatment.