Numbness of the hands and feet is not necessarily a precursor to major diseases, generally suggesting the possibility of peripheral neuropathy, such as cervical spondylosis, lumbar spondylosis, diabetes mellitus and other diseases, but also cerebrovascular disease can be caused. 1. Cervical spondylosis: this is a common orthopedic disease, manifested by neck pain and discomfort, dizziness, numbness of the upper limbs or lower limbs and other symptoms. 2. Lumbar spondylosis: when there are lumbar disc herniation, spinal stenosis, lumbar spondylolisthesis and other lumbar spondylosis, numbness of the feet can occur due to nerve compression. 3. Diabetes mellitus: If diabetic patients do not regularly use hypoglycemic drugs, high blood sugar can cause peripheral neuropathy, resulting in numbness of the hands and feet. 4. Cerebrovascular disease: such as cerebral infarction, transient ischemic attack, cerebral hemorrhage, etc., can lead to numbness and weakness of the lateral limbs. It is suggested that patients with numbness of hands and feet should not listen to rumors and excessive anxiety, and should consult the doctor in time, and target treatment after clear diagnosis.