The third day after the birth of the milk up with hard lumps is due to milk stagnation, you can line hot compresses massage breasts, increase the number of breast milk, manipulation and so on. 1. Hot compresses and massages on both breasts: hot towels can be used to apply hot compresses on both breasts to improve the local blood circulation of both breasts, thus expanding the mammary ducts, improving the state of milk stagnation, and alleviating the symptoms of swelling and hardening of the breasts. 2. Increase the frequency of breastfeeding: maintain the correct breastfeeding posture, i.e. chest to chest, stomach to stomach, jaw to breast, and let the baby suckle more on both breasts, which will help the milk ducts to be smooth, thus relieving the symptom of breast swelling and pain. If the baby’s sucking power is not enough, or the nipple of the mother is inverted, you should first use a breast pump to suck out the milk, so as to avoid long-term accumulation of milk, resulting in mastitis. 3. Manipulation: This should be done under the operation of a professional doctor. The first three days after the birth of a hard lump of milk is due to the accumulation of milk, such as repeated sucking by the baby, hot compresses, massage, but still can not alleviate the symptoms of the person, you need to go to the hospital in a timely manner, in order to prevent the occurrence of mastitis.