There is no such thing as the best time to get rid of residual milk in the clinic. Generally, women can get rid of residual milk about 21 days after weaning, and correctly getting rid of residual milk can effectively prevent mastitis. The residual milk is the milk that remains in the ducts of the mammary glands after weaning or breastfeeding. Normal breast tissue has a certain absorption function, and the residual milk can be absorbed by the body itself. However, for some people, if the residual milk can not be absorbed by the body, it may lead to the accumulation of milk in the breast, appearing in the breast hardness, lumps and other uncomfortable symptoms, and in serious cases, may even lead to mastitis. Therefore, if a woman experiences breast discomfort after 21 days of weaning, it is recommended to go to the hospital for puncture treatment to pump out the residual milk. At the same time, after the treatment, you need to keep the breast skin clean to avoid secondary infection. During the treatment period, women need to follow the doctor’s instructions for regular check-ups to see how their body is recovering.