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Reflux and Spitting Up in Babies

Reflux happens when milk or stomach contents move back into a baby’s esophagus and sometimes out of the mouth. Spitting up is the visible form of reflux and is very common in infancy.

The muscle between the esophagus and stomach is still developing in babies, which makes reflux common. Overfeeding, feeding position and some medical conditions can also contribute.

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AAP Guide to Reflux and Spitting Up in Babies

The AAP guide below explains normal reflux, what can help and when your baby needs medical care.

AAP Symptom CheckerReflux and spitting up

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When to see a doctor

Contact your pediatrician or another healthcare professional if:

  • Your baby is not gaining weight normally.
  • Vomiting becomes forceful or frequent.
  • Your baby refuses feeds or seems to have significant pain with feeding.
  • Blood or green fluid appears in the vomit.
  • Your baby has breathing problems or seems ill.

Call 911 or get emergency care if:

  • Your baby vomits bright green fluid.
  • Your baby has severe breathing trouble, severe dehydration or is very difficult to wake.
  • You think your baby has a life-threatening emergency.

Talk to a nurse now, at any hour

When can my child be seen

Be seen today.

Every office keeps same-day appointments for illness and injury.

This evening or at the weekend.

Most offices run After Hours Care, by appointment rather than walk-in.

If you are worried, call. We would rather answer a question that turns out to be nothing.

More on stomach and bowels

See the rest of this group and all 164 symptoms