Normally, the residual milk will be absorbed by the body and does not need to be treated. However, if the amount of residual milk is large or accompanied by symptoms such as bloating, pain and infection, you can go to the hospital for puncture and suction to discharge the residual milk. After weaning, most of the residual milk in the mammary glands can be absorbed on its own. The absorption process may take a few months or a few years. This self-absorption process usually does not require human intervention. If the mammary glands are squeezed artificially, there is a risk of damage to the mammary glands and an increased risk of other diseases of the mammary glands. If the amount of residual milk is relatively large and the body has difficulty in absorbing it, or if the residual milk, due to its rich nutrient content, becomes a bacterial culture medium for secondary bacterial infections, with inflammatory manifestations such as redness, swelling, heat, pain, etc., you can go to the hospital for puncture suction to discharge the residual milk.