My Baby Possets After Every Feed
The short answer
Posseting (also called "spitting up") is when small amounts of milk effortlessly flow back up after feeding. It's incredibly common in healthy babies because the valve at the top of the stomach is still developing. Most babies posset occasionally or even after every feed, and it's completely harmless as long as baby is gaining weight well and seems comfortable.
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By Age
What to expect by age
0-3 months
Posseting is very common in newborns and young babies. The lower esophageal sphincter (the valve between the esophagus and stomach) is immature, and baby's stomach is small and positioned horizontally. Small amounts of milk easily flow back up, especially if baby has eaten a lot, swallowed air, or is laid down too quickly after feeding. You might notice milk dribbling from baby's mouth even an hour after feeding - this is normal.
3-6 months
Posseting often continues or even peaks around 4 months. This doesn't mean something is wrong - it's just part of normal development. Some babies posset more during or after tummy time, when bounced or moved around, or when they're laughing or babbling. The amount may look like a lot but is usually just a tablespoon or two. As long as baby is gaining weight and seems happy, frequent posseting is not a concern.
6-12 months
Posseting typically decreases significantly as baby sits upright more, the esophageal valve matures, and baby starts solids. Some babies continue to posset occasionally, especially if they overeat or are very active after a feed. If your baby is still posseting frequently at this age but is growing well and happy, it's usually fine. If it seems to be getting worse or baby seems uncomfortable, mention it to your pediatrician.
12+ months
Most toddlers have outgrown frequent posseting by this age. Occasional spit-up might still happen if they eat too much, drink while lying down, or are very active right after eating. If your toddler suddenly starts posseting frequently after months without it, consider recent diet changes or illness.
What Should You Do?
When to take action
- Small amounts of milk dribbling or flowing out after feeds
- Baby seems completely unbothered and continues to feed eagerly
- Posseting that happens shortly after feeding or even an hour later
- Baby is gaining weight according to growth curve
- At least 6 wet diapers per day
- Posseting seems excessive (soaking multiple bibs per day) but baby is growing well
- Baby seems to be posseting more than before
- You're worried about the frequency or amount
- Baby occasionally seems uncomfortable but it's not a consistent pattern
- Posseting becomes forceful, projectile vomiting
- Baby isn't gaining weight or is losing weight
- Baby refuses feeds or seems to be in pain during or after feeding
- Posset is green (bile-colored), yellow, or contains blood
- Baby has fewer than 6 wet diapers in 24 hours
- Baby arches back severely during feeds, cries inconsolably, or has difficulty breathing
Sources
Related Resources
Trust your instincts. If something feels wrong, reach out to your pediatrician.
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Related Digestive Concerns
My Baby's Belly Looks Swollen
A rounded, slightly protruding belly is completely normal in babies and toddlers due to immature abdominal muscles and their proportionally larger organs. However, if the belly becomes suddenly swollen, feels hard and tight, or is accompanied by pain, vomiting, or changes in bowel movements, it needs medical evaluation as it could signal gas buildup, constipation, or rarely, something more serious.
My Baby Has an Anal Fissure (Blood When Pooping)
A small streak of bright red blood on the surface of your baby's stool or on the diaper is most commonly caused by an anal fissure, which is a tiny tear in the skin around the anus from passing hard stool. Anal fissures are very common in babies and toddlers and usually heal on their own with simple measures like keeping stools soft. While this is rarely serious, any blood in your baby's stool should be mentioned to your pediatrician.
Tummy Massage for Baby Gas
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Silent Reflux in Baby
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Bicycle Legs Technique for Gas
Bicycle legs is a simple, effective technique for helping babies pass trapped gas. Gently moving your baby's legs in a cycling motion pushes against the abdomen and helps gas move through the intestines. Combined with gentle belly massage and tummy time, it is one of the best non-medical approaches to gas relief in infants.
Dark Blood in Baby's Stool
Dark or black blood in stool (melena) is different from bright red blood and may indicate bleeding from the upper digestive tract (stomach or upper intestine). In newborns, black stools in the first few days (meconium) are normal. Beyond the first week, dark, tarry, or coffee-ground-like material in stool needs prompt medical evaluation. Some dark-colored foods and iron supplements can also darken stools without being blood.