X-rays generally have no effect on breastfeeding and need to be performed as prescribed. Although X-ray examination is a kind of ionizing radiation examination, since the amount of electric radiation in routine X-ray examination is relatively small, and the X-ray radiation will not be transmitted to the baby through breast milk secretion after the examination is conducted, nor will it be stored on the surface of the mother’s body or inside the body to be passed on to the baby, therefore, X-ray examination of breastfeeding mothers generally has no effect on breastfeeding, but it is necessary to carry out the examination under the guidance of the doctor. Nursing mothers should pay attention to ensure sufficient sleep and adequate nutrition to facilitate breastfeeding, and also maintain appropriate physical exercise to promote physical recovery and control weight gain. Breastfeeding should also pay attention to avoid taking drugs blindly, to avoid the metabolism of drugs through the breast milk passed to the baby, there are indications of medication must be in compliance with the doctor’s instructions for the safe use of medication.