When Does Baby Reflux Peak? Age and Signs to Watch

During the peak months, you may notice milk coming back up after feeds, especially when your baby burps or changes position. A baby who spits up but feeds comfortably, gains weight, and seems otherwise well is in a different situation from a baby who regularly refuses feeds, appears to be in pain, or is not gaining weight as expected.

Check the product’s listed specifications when evaluating what the peak can look like.

Keep a note of when spit-up happens, how your baby acts during and after feeding, and whether sleep or comfort seems affected; our baby reflux tracker guide can help you organize what you observe. We also offer the Baby Reflux Relief Checklist as a simple way to keep feeding, sleep, and comfort details together when you talk with your baby’s pediatrician.

Try offering manageable feeds, burping your baby during natural pauses, and holding them upright while awake after feeding if that helps them stay comfortable. For every sleep, place your baby on their back on a firm, flat sleep surface; reflux is not a reason to use a wedge, incline the mattress, or put your baby to sleep on their stomach.

Contact your baby’s pediatrician if spit-up is worsening, feeds are consistently difficult, or you’re concerned about weight gain or fewer wet diapers. Seek prompt medical care for green or bloody vomit, forceful repeated vomiting, breathing trouble, or signs of dehydration rather than waiting to see whether reflux improves with age.

Check the product’s listed specifications when evaluating when to call your pediatrician.