Menstrual shoulder pain can be seen in the following three cases: the first case, in the month of women’s resistance is particularly poor, if the sleep did not pay attention to heat preservation, cold cold may cause the occurrence of menstrual shoulder pain. In the second case, shoulder pain can also be seen in the patient after delivery to hold the child in an incorrect position, labor caused by shoulder pain. In this case, you should pay attention to rest and try to avoid holding the baby for a long time. Thirdly, shoulder pain can also be caused by incorrect breastfeeding posture. Inadequate breastfeeding posture can also cause shoulder pain. For shoulder pain, we must pay attention to the local heat preservation, not cold and cold, and pay attention to rest, do not overwork. If there is no improvement after the above treatment, it is recommended to go to the hospital as soon as possible for examination to clarify the diagnosis.