Numbness of the hands and feet may be caused by keeping a fixed posture for a long time, and is also a symptomatic manifestation of many diseases, such as neurogenic cervical spondylosis, lumbar spondylosis, cerebrovascular disease, and diabetic peripheral neuropathy. Healthy people who keep a posture for a long time may suffer from short-term numbness in hands and feet due to prolonged pressure on blood vessels and local ischemia and hypoxia. In addition to this, it is also a symptom of some diseases: 1. Neurogenic cervical spondylosis: If there is neurogenic cervical spondylosis and the compression of spinal nerves by cervical spondylosis is very serious, the symptoms of numbness and pain in hands and feet will appear. 2. Lumbar spine disease: If you have lumbar disc herniation, the pressure on the nerves will also lead to numbness and pain in the hands and feet. 3. Cerebrovascular disease: if there is a brain hemorrhage, brain tumor, cerebral infarction, can also cause numbness and pain in the hands and feet. 4. Diabetes mellitus: If there is diabetes mellitus, and the blood sugar control is not good for a long time, it will cause damage to the local nerves or distal blood vessels, which will lead to peripheral neuritis, and then cause numbness and pain in the hands and feet. If the symptoms of numbness and pain in the hands and feet, excluding physiological reasons, should go to the hospital in time to clarify the cause of the disease, and take timely treatment measures.