What if I don't hear swallowing?
It is normal to hear a baby swallowing at the start of a feed, but it doesn’t mean the baby is getting enough milk. Mothers will hear swallows even if there is not enough milk. As babies grow, they swallow less frequently and get better at handling the let-down, so swallowing becomes harder to hear. One tool related to audible swallows used by health-care providers is the suck-swallow ratio, the number of sucks for each swallow. The expectation is about one swallow for each suck, but studies have found that the ratio changes within the first month and even varies within a feed, so it’s hard to tell what is an abnormal ratio. There are better ways to assess milk intake.