Breast opening refers to the 1st feeding after the birth of the baby, which can be done half an hour after the birth of the baby, usually within half an hour to 2 hours after delivery. The following methods can be used to help open the milk: 1. Baby sucking: The main way to open the milk is baby sucking. You can let your baby suck on the nipple after birth to promote and increase milk secretion; 2. Using a breast pump: If you cannot let your baby suck on the nipple in time after a cesarean delivery, you can use a breast pump instead of your baby to stimulate the nipple so that the mother can produce reflex lactation to help open the milk; 3. Unblocking the mammary glands: To help open the milk A variety of methods can be used to unclog the mammary glands, such as massage with the nipple as the center, gently pushing the technique from the outside to the inside, and also through massage and acupuncture by professionals to help the mammary glands to lactate in order to facilitate the opening of milk and breastfeeding. The force should not be painful. Do not press the breast vigorously, which will lead to mammary gland damage and milk accumulation. Some women have short nipples and sunken nipples that prevent their babies from breastfeeding properly. When the baby is not sucking, you can pull the nipple outward to help the baby suck the milk normally. You need to clean your breasts well, you can use nipple protection cream on your nipples, and you should also wear loose clothing to prevent your nipples from rubbing and breaking. Pay attention to rest and avoid staying up late or being emotionally stressed, which may lead to a decrease in milk supply.