If the breast pump does not suck out the milk, you may have too much milk and swollen breasts. If your breasts are bruised, use a hot towel to warm them up and massage them from the base of the breast before using the breast pump, and then repeat the action if you still can’t get it out. You should stop sucking when you feel pain in your breasts and nipples. If you can’t get the milk out with the correct method, you should check if the breast pump is damaged. If you can’t get milk out of the breast pump, you can let your baby suck on it for a while and then use the breast pump. Some women have sufficient milk secretion and their babies cannot finish it. When there is swelling in the breast, you should empty the breast in time, otherwise you will easily suffer from mastitis and other diseases, which is not good for breast health.