The pain in the arm after childbirth is due to the fact that during childbirth, the mother is exposed to external forces during the exertion process. The pain can be caused by the local muscles and ligaments being stretched and stimulated. 1, the mother can do active and light upper limb activities, such as shaking her arms, to promote local blood circulation and improve the pain symptoms. 2, you can use warm water towels or salt heat bags to apply hot compresses locally, which also have a definite effect on relieving local pain symptoms. 3, the pain symptoms are obvious. When the pain is obvious, after the hot compress, you can apply topical ointment that activates blood circulation and relieves tendons. 4, pay attention to rest, do not hold the child again for a short time, pay attention to warmth and avoid cold stimulation.