The causes of numbness in hands and feet at night are as follows: First, it is considered to be caused by cerebrovascular disease, blood flow slows down during sleep at night, and if there is atherosclerosis, ischemic cerebrovascular disease can easily occur, such as transient cerebral ischemic attack leading to numbness in hands and feet during sleep at night, accompanied by dizziness, headache, stupidity, memory loss and other symptoms of neurological deficits, if necessary, patients are given If necessary, patients should undergo head CT or MRI and cerebrovascular examination, and be treated with dual antiplatelet aggregation therapy. Secondly, numbness in the hands and feet at night is also seen in some middle-aged and elderly patients who suffer from cervical disc protrusion or lumbar disc protrusion due to osteoporosis, which causes nerve root stimulation due to prolonged lying down during sleep, thus causing numbness in the hands and feet, and the symptoms can be significantly reduced after morning activities.