Am I expressing too much?
Some mothers express more milk than their babies need. They may do it because their babies can’t breastfeed or because their breasts get too full between feeds. They may worry about their milk supply decreasing or they may be preparing to return to work. Expressing stimulates milk production, but some breasts overreact and start producing too much, becoming overfull, heavy, and tender. Mothers who express a lot of milk are also at risk of milk pimples, plugged ducts, mastitis, or abscesses. To avoid these problems, they can decrease the amount of milk they produce by slowly decreasing the expressed amounts. To do this, mothers keep expressing the same number of times each day but decrease the total amount of milk each day by 30 to 60 millilitres (1 to 2 U.S. fluid ounces).