The primary reason for occasional vomiting (once or twice a day) is overfeeding, which frequently occurs if you attempt to soothe Lucy with a nipple (yours or the bottle’s). Remember, just because she takes it doesn’t mean she’s hungry. If you suspect overfeeding is causing her to vomit, offer less food. If the problem does not subside, see below.
Repetitive vomiting, especially after a large feeding, could indicate reflux, a condition in which food does not stay in the stomach [See: Reflux]. Much rarer but more serious is a blockage of the intestine called pyloric stenosis, especially in young infants. In this case, vomiting starts around two to three weeks of age and worsens to the point that the baby vomits even the smallest amounts of food swallowed. Both conditions require medical attention, and the latter requires prompt surgical correction.
In Older Children
In older children, stomach bugs are the most frequent cause of occasional vomiting [See: Reflux]. Ongoing vomiting is rare, and it requires medical evaluation.