There are many causes of numbness in the hands and feet, which can be caused by local nerve compression, taking flavopiridol, diabetes, stroke, etc.
Numbness in the limbs is not the same kind of numbness, but if the numbness is in a single area, the numbness that produces the local phenomenon is local nerve irritation. For example, after a drunken stroke, unconsciousness can cause nerve irritation to the head, prolonged toilet irritation can cause numbness in the legs, poor sleeping position can cause numbness on one side, etc.; when you have a cold or diarrhea, berberine can cause numbness in the hands and feet. The side effect of berberine is that it may cause numbness in the hands and feet. Nerves are the basic structures that control sensation in the extremities. The most common symptoms of neuritis are numbness in the hands and feet, muscle atrophy and weakness in the limbs. If diarrhea or a cold is uncontrollable for half a month, it can cause neuritis. Once you notice frequent numbness, soreness, and swelling in one part of the body, you should check your blood sugar promptly.
Numbness in the hands and feet of the elderly is closely related to cerebral vascular sclerosis, especially minor strokes (localized sclerosis of the cerebral vessels) and hypertension. In the case of cervical spondylosis or lumbar disc herniation, which compresses the nerve roots, numbness in the hands and feet may also occur, and a systematic examination at a hospital is recommended to determine the cause.