Pain in the arms after delivery is often considered to be caused by postpartum exertion, such as frequently holding the child or putting the arm into labor too early, which causes excessive force and muscle tension. The pain may also be caused by cold in the arm after delivery, which is a normal physiological phenomenon and can be relieved by paying attention to warmth and proper rest. However, some patients are caused by pathological factors, the cause of the disease should be clarified in time to take treatment measures: 1, tennis elbow: if the mother has inflammation of the upper limb joint tendon stop site before childbirth, resulting in the emergence of tennis elbow disease, may lead to the symptoms of arm pain; 2, osteoporosis: some mothers may have malnutrition after childbirth, nutritional intake is not balanced, adequate and other factors 3, cervical spondylosis: if the maternal cervical spondylosis occurs during pregnancy due to long-term bed rest or incorrect posture, the postpartum cervical vertebrae may compress the nerve roots, thus causing the maternal arm pain posture; 4, rheumatoid arthritis: due to the decline in hormone levels after childbirth, resulting in a decline in immune function, so the maternal may be at the arm cause rheumatoid arthritis, under the stimulation of inflammation, resulting in maternal arm pain.