There are many clinical reasons why infants do not eat breast milk. Most infants suck the bottle with ease, while sucking breast milk with more effort, and it is not easy to suck out, which is easy to form the pseudo-nipple effect, resulting in infants crying constantly and refusing to eat breast milk; if the infant is premature or the infant is unwell, such as fever or gastrointestinal inflammation, it is easy to cause its sucking power to be insufficient, which is manifested as refusing to eat breast milk, which can be squeezed out and fed with a small spoon to ensure the normal nutrition of the infant’s organism. In addition, insufficient maternal breast milk also predisposes the infant to show refusal of breast milk.