Frequent hand numbness is mostly caused by nerve compression, which should depend on the location and severity of the compression. Numbness in both hands is most commonly caused by median nerve compression, sometimes waking up at night with numbness in the wrist, and sometimes waking up in the morning with a particularly numb, swollen hand, or even feeling unconscious. If you sleep with your hands in a natural state after adjusting your posture and still have numbness, it means that it is very serious and you need to do nerve decompression for more than six months to remove the compression factors around the nerve. If there is no problem with the median nerve in the hospital, you should consider whether the elbow or the cervical spine is stuck.