Smoking is not allowed during breastfeeding, nor is an occasional cigarette, as it is harmful to your health and can affect the development of your baby. Smoking during breastfeeding is harmful to both the breastfeeding mom and the baby. Because the harmful substances in cigarettes will enter the body of nursing mothers, and then transferred to the baby’s body through breast milk, which is harmful to the development of the baby. Nursing mothers must quit smoking as soon as possible, do not let the baby in the environment of second-hand smoke, second-hand smoke is more harmful to the baby, may cause adverse effects on the infant’s digestive system, respiratory system. Breastfeeding mothers can remind themselves that smoking is harmful to their health through distraction and constant mental suggestion, which can help to quit smoking. If breastfeeding mothers long-term smoking has affected the baby’s health, must go to the hospital in time for examination and treatment.