Sudden mild numbness of the face in young people may be related to prolonged pressure on the face, or it may be caused by autonomic dysfunction, trigeminal nerve injury and other reasons. In terms of treatment, the main treatment is to remove the cause of the disease and alleviate the symptoms of the treatment principle. 1. Long-time pressure on the face: for example, keeping the side lying position for a long time while sleeping, resulting in long-time pressure on one side of the face, causing poor blood circulation, which will cause slight numbness of the face. In this case, we should correct the bad sleeping position in time, and release the pressure on the face, which can make the symptoms disappear soon. 2. Autonomic dysfunction: usually caused by long-term psychological trauma, can lead to increased excitability in some areas of the cerebral cortex, resulting in neurological dysfunction, dysregulation of the autonomic nervous system, which may cause sudden and slight numbness of the face. The condition can be relieved with medicines such as glutamine, vitamin B12 and other nutrients. 3. Trigeminal nerve injury: may be related to viral infection, can cause the patient suddenly appeared face slight numbness symptoms, can apply prednisone, acyclovir, ganciclovir and other drugs treatment. Young people suddenly face slight numbness, if accompanied by obvious discomfort symptoms, should seek medical attention as soon as possible, diagnose the cause, give targeted treatment.