Numbness of the tongue after waking up is considered to be caused by cerebrovascular disease. Clinically, it is usually seen in ischemic cerebrovascular disease, which can be seen in small cavernous infarcts or infarcts of the brainstem. CT or MRI examination of the head can be given, and symptomatic treatment can be given to improve circulation, activate blood circulation and remove blood stasis as well as antiplatelet aggregation or anticoagulation. Numbness of the tongue after waking up can also be seen in cervical spondylosis of the vertebral artery type, because the patient has a herniated cervical disc, the herniated cervical disc affects the blood supply of the vertebral artery while sleeping, and the vertebral artery supplies the blood supply of the brainstem, so when the vertebral artery is ischemic, the patient can have symptoms of brainstem ischemia with numbness of the tongue, and in severe cases, it can also be accompanied by dizziness. It is recommended that the patient can check the CT or MRI of the cervical disc if necessary, and give traction, acupuncture, massage and other symptomatic treatment according to the cause of the patient.