There's nothing worse than spending so much time pumping your breast milk only to find out that it's gone bad sooner than you expected. The stuff is called liquid gold for a reason, and no mom wants to have to throw out even a drop of her hard-won milk. Luckily, getting to know a few of the signs your breast milk has gone bad will save you from the pain of having to pump your milk and dump it a few days later.
Not unlike cow's milk, breast milk will spoil if left out in the open, or even in the refrigerator for longer than it should be. According to La Leche League International, breast milk should be left at room temperature for no longer than four to six hours. Similarly, they stated that it should be refrigerated for no more than eight days (absolute maximum, the ideal amount is 72 hours.) After that point, the milk should be frozen, or used immediately, as long as none of the signs of spoilage are present.
Once you learn these signs that your milk has gone bad, you'll no longer have to play a guessing game with your precious liquid gold.