The clinical symptoms of numbness in the feet when waking up are commonly caused by the following: a. Lumbar diseases: patients with lumbar spinal stenosis, lumbar disc herniation and other diseases can stimulate the nerve roots causing clinical symptoms of numbness in the feet, and if there is an acute attack, numbness in the feet will appear when waking up. Generally, the specific lesion can be found through CT scan, or MRI, and bed rest and lumbar traction treatment can bring about rapid relief of clinical symptoms. Second, lower extremity compression: such as sleep process position causes compression of one or both lower extremities, can affect blood circulation, resulting in nerve endings with impaired blood supply, the patient will have clinical symptoms of numbness in the feet, and the symptoms will gradually ease after activity. Third, central neuropathy: such as cerebral thrombosis, cerebral embolism, foot numbness symptoms can occur, and the extent of the lesion can be found through CT scan.