Coughs have more causes, and not all coughs are contagious. Whether a mother’s cough is contagious to her baby while breastfeeding needs to be analyzed according to the cause of the cough.1. Infectious factors: If the mother’s cough is caused by infectious factors, it may be contagious to her baby. Since bacteria or viruses are contagious and the mother needs to be in close face-to-face contact with the baby during breastfeeding, the coughing bacteria or viruses can be transmitted to the baby via the respiratory tract. 2. Non-infectious factors: If the mother has a cough caused by non-infectious factors, such as hyper-responsiveness of the airway or simple foreign body choking, it is usually not contagious to the baby. In order to avoid infecting the baby with the mother’s cough while breastfeeding, the following measures can be taken: 1. Wear a mask: avoid speaking directly to the baby, you can wear a mask while breastfeeding or facing the baby; 2. Open windows and ventilate: while keeping the baby warm, open windows and ventilate regularly to reduce the content of disease-causing microorganisms in the indoor air; 3. Provide timely treatment: you can drink more water, eat more fresh vegetables and fruits and light and easily digestible food. Pay attention to nutritional enrichment and increase exercise appropriately, all these ways are helpful to stop cough. If it is a bacterial infection, you can choose antibiotics suitable for breastfeeding under the guidance of your doctor, and if necessary, you can stop breastfeeding briefly according to your condition and resume breastfeeding when the disease gets better.