Numbness of the feet is not necessarily a precursor to any disease, but is more likely to indicate cerebral infarction, lumbar spine disease, osteoarthrosis, diabetes and other diseases. 1. Cerebral infarction: when cerebral infarction occurs, there will be one side of the upper limb or lower limb numbness as the characteristic performance. With the development of the disease, half of the body will experience numbness, and this feeling will last for a few hours or days. Failure to consult a doctor in time will result in more serious consequences. 2. Lumbar spine diseases: lumbar spine diseases such as lumbar disc herniation and lumbar spinal stenosis can cause local nerve compression, resulting in numbness in the legs characterized by numbness of the feet or unilateral numbness of the legs. Usually after strenuous exercise or heavy physical labor, the symptoms of foot numbness will be aggravated. 3. Osteoarthropathy: When osteoarthropathy attacks, it can damage the peripheral nerves of the bone and joints, resulting in numbness of the hands and feet. 4. Diabetes mellitus: when diabetes mellitus attacks, it can make the peripheral neuropathy gradually spread, which is most likely to cause pain and numbness in the feet, and can be accompanied by (such as fever, itching, etc.) abnormal sensations. It is recommended that you should pay attention to resting your legs, avoiding overwork or intense exercise, paying attention to keeping your legs warm, and avoiding your legs from getting cold. If the symptoms are severe and continue to be unrelieved, it is recommended to go to a regular hospital to clarify the cause of the disease and carry out targeted treatment.