The causes of numbness in the palms of the hands at night: first, sleep due to excessive pressure on the palms of the hands for a long time, poor local blood circulation caused by activities and massage can be significantly relieved; second, numbness in the palms of the hands at night, middle-aged and elderly patients should be alert to cerebrovascular disease, especially the slowing of blood flow during sleep at night, blood viscosity prone to ischemic cerebrovascular disease, numbness in the palms of the hands, accompanied by dizziness, Thirdly, numbness in the palms of the hands at night can also be seen clinically as a result of cervical spondylosis, protruding cervical discs stimulate the nerve roots during prolonged sleep, resulting in numbness in the palms of the hands, and patients are given traction, acupuncture, massage and other treatments; fourthly, numbness in the palms of the hands at night can also be seen as a result of local nerve compression, such as the median nerve, ulnar nerve and so on. For example, the median nerve, ulnar nerve and other local numbness in the palm of the hand.