For numbness in the arm in the middle of the night, it may be considered that nerve compression or incorrect posture, compression of the arm or vascular lesions, etc. can occur, so attention and concern are needed. Especially if there is pathological compression, it is necessary to actively intervene so as not to cause injury or cause paraplegia would be more troublesome, so evaluate first as soon as possible, such as going to vascular surgery or orthopedics, and then actively treat the cause according to the cause after perfecting the examination. If it is physiological, hot compresses and massage can be applied, and the treatment effect is good. If it is pathological, early surgical intervention is needed to relieve the compression symptoms so as not to cause injury, and regular review afterwards.