The pain and discomfort in the arm after waking up may be caused by improper local posture during sleep and continuous pressure on the arm; it may also be caused by local cold; there is a lesion in itself, but the pain and discomfort is found after sleep. Consider going to the orthopedic department of the hospital in time to see a doctor, who can routinely improve the X-ray examination of the arm to understand whether there are obvious skeletal lesions, combined with the preliminary analysis of the body. If the soreness is caused by general compression, timely release the compression, localize the area with appropriate heat and massage, generally two or three days can be significantly relieved. If the pain is due to cold, local warmth can be applied to the area to relieve local soreness. If there is any abnormality in the bones of the X-ray examination, do the corresponding treatment according to the results of the examination.