If your baby, infant, toddler, or child is vomiting, spitting up after feeds, or losing ground on weight gain, it can be hard to tell what’s normal and what needs medical attention. Get clear next steps based on your child’s age, feeding pattern, and growth concerns.
About this assessment
Share what you’re seeing right now—such as vomiting after feeds, frequent spit-up, slow weight gain, or weight loss—and get personalized guidance on when to see a doctor and what details matter most.
Many babies spit up, and some children vomit with common illnesses. But when vomiting happens along with poor weight gain, slow growth, or weight loss, it may mean your child is not keeping down enough nutrition or may need a medical evaluation. Search terms like baby vomiting and poor weight gain, infant vomiting not gaining weight, and vomiting after feeds and poor weight gain often reflect a parent trying to decide whether to wait, adjust feeding, or call the doctor. This page is designed to help you sort through those concerns in a practical, reassuring way.
Some parents notice frequent spit-up after nursing or bottles, while others see larger-volume vomiting after feeds. If this is happening often and your baby is not gaining weight well, it’s worth paying closer attention.
Newborn slow weight gain, infant not gaining weight, or a child falling off their usual growth curve can be an important clue when paired with vomiting, even if the vomiting does not seem severe every time.
Baby vomiting and weight loss, poor intake, or signs of dehydration can point to a more urgent need for medical advice, especially in younger infants.
If your baby arches, cries with feeds, refuses feeds, or seems hungry but cannot keep enough down, a clinician may want to review feeding patterns and growth.
A recent increase in vomiting, stronger vomiting, or vomiting that happens with nearly every feed can change how quickly your child should be evaluated.
Poor weight gain with vomiting in a baby, toddler vomiting and poor weight gain, or child vomiting and not gaining weight can all signal that the issue is affecting nutrition and overall growth.
By answering a few focused questions, you can get personalized guidance that reflects your child’s age and symptoms. The goal is to help you understand when to see a doctor for vomiting and poor weight gain, what warning signs should not wait, and what information may be useful to track before your visit, such as feed timing, vomiting frequency, diaper counts, and recent weight changes.
Think about whether it is occasional spit-up, frequent spit-up, or true vomiting after most feeds, and whether it has changed recently.
Notice whether your child is feeding less, seems uncomfortable during feeds, or is having fewer wet diapers than usual.
If you know recent weights, whether your newborn is gaining slowly, or whether your child has lost weight, that context can help guide next steps.
Not always. Many babies spit up small amounts and still grow normally. But frequent spit-up or vomiting paired with poor weight gain, slow weight gain, or weight loss deserves more attention because it may be affecting nutrition.
You should contact your child’s doctor if vomiting is frequent, getting worse, happening after most feeds, or if your baby, infant, toddler, or child is not gaining weight well. More urgent evaluation may be needed if there is weight loss, dehydration, lethargy, blood or green vomit, or your child seems too weak to feed.
Yes, sometimes the cause is not an emergency, but newborns can become dehydrated more quickly and growth concerns matter early. If a newborn is vomiting and gaining slowly, it is a good idea to get guidance promptly rather than waiting to see if it improves on its own.
In toddlers and older children, repeated vomiting with poor weight gain can still be important, especially if appetite is low, meals are hard to keep down, or growth has slowed over time. A doctor may want to review symptoms, hydration, and growth history.
Personalized assessment
Answer a few questions about your child’s vomiting, feeding, and growth pattern to get clear assessment-based guidance on when to seek care and what to watch for next.