护盾有效吗？
yes, breast shields are really effective, as they help moms overcome the common breastfeeding challenges like when the baby is having trouble latching, one or both of the mother’s nipples are flat or inverted, or they have a cracked nipple, etc.   
they help provide a definitive shape to mom’s nipple, making it easier for the baby to latch onto.
breast shields are used to help mothers to aid in breastfeeding, when they are having problems like the baby is having trouble latching, one or both of the mother’s nipples are flat or inverted, or they have a cracked nipple, etc.   
它也可用于早产婴儿以有效地母乳喂养他们。