The postpartum mammary gland is not open, the ducts should be unblocked as soon as possible, otherwise it is easy to induce mastitis or even breast abscess. The method of unblocking includes hot compresses, local massage, and regular breastfeeding. 1, hot compresses: you can use warm salt water for hot compresses, or hot towels on the breasts, which can help unblock the milk ducts; 2, local massage: massaging the breasts can help unblock the milk ducts, with an interval of 20-30 minutes each time, before massage, you can first apply hot compresses, and then apply smooth breast skin care products, from the breast around to the areola for Massage, and then lift the nipple up and down, you can achieve the effect similar to the baby sucking. However, it should be noted that the massage must be gentle to avoid damage to the mammary glands; 3, regular breastfeeding: breastfeeding should generally begin as early as possible after delivery to stimulate the expansion of the mammary ducts and promote milk secretion through the baby’s sucking. It is recommended to suckle regularly, which can be 2-3 hours apart, avoiding too long intervals. Breastfeeding can be alternated between the right and left breast to help milk secretion from both breasts. If the baby is weak in sucking, a breast pump can also be used to promote milk evacuation. Postpartum milk duct failure can lead to milk stagnation and even mastitis, breast abscess and other abnormalities, so when the above treatment does not work, then you need to seek medical attention and treatment by a professional doctor.