Last update: November 2026
The tricky thing about newborn crying is that three very different situations can look almost identical at 7 p.m.
Your baby has just eaten, but they’re crying again. They pull their legs up, arch their back, or turn red while you try everything you can think of. Someone suggests gas. Someone else says reflux. And eventually, you find yourself wondering whether this is just normal newborn crying or whether something is actually wrong.
Colic, reflux and normal crying can overlap, but they aren’t the same thing. The timing of the crying, how your baby feeds, whether they spit up, how they’re growing and how they behave between episodes can all help you work out what deserves a closer look.
You don’t need to diagnose your newborn from a checklist. But understanding the differences can help you decide what to try, what to watch and when to ask for medical advice.
The quick difference: colic vs reflux vs normal crying
A practical comparison for newborn parents
| What you notice | Normal newborn crying | Infant colic | Reflux or feeding-related discomfort |
|---|---|---|---|
| When it happens | Any time; often more in the evening | Often prolonged episodes, sometimes worse in the evening | Often around feeds, but timing varies |
| How long it lasts | Variable; may settle quickly or take time | Repeated, intense, difficult-to-soothe episodes | May occur during or after feeding, especially if there is discomfort |
| Between episodes | Baby may feed, sleep and interact normally | Baby is generally healthy and behaves normally between episodes | Many babies with uncomplicated reflux are comfortable between feeds |
| Spitting up | Can happen normally | Not required for colic | Common with reflux, but doesn’t automatically mean pain |
| Growth and feeding | Usually feeding and growing as expected | Usually otherwise healthy and growing normally | Poor weight gain, feeding refusal or painful feeds need assessment |
| What it means | A normal part of early development | A pattern of excessive crying without an obvious cause | Milk moving back into the esophagus; sometimes associated with troublesome symptoms |
These patterns can overlap. This table is a guide, not a diagnostic test. Reflux, for example, can occur in a baby who also has normal developmental crying.
1. What does normal newborn crying look like?
Newborns cry to communicate hunger, discomfort, tiredness and the need for help regulating their state. Sometimes, though, you check the nappy, offer a feed, change position and hold your baby close — and the crying continues.
That can still be normal.
Crying often increases during the first weeks of life. Babies may have fussy periods when they’re difficult to settle, even when their basic needs have been met. Their ability to regulate their responses is still developing, and they cannot reliably calm themselves when distressed.
Research following thousands of infants found that average daily crying and fussing generally declined between the early weeks and three months, although the pattern varied considerably between babies. (PubMed)
Normal crying can look surprisingly dramatic. A baby might turn red, clench their fists, pull their knees up or arch their back. None of these movements, on its own, proves that something is wrong with their digestive system.
What matters is the whole picture: whether your baby feeds reasonably well, gains weight, has their usual wet diapers and seems generally well between crying episodes.
If your baby cries after a feed, that doesn’t automatically mean they’re still hungry, have reflux or are experiencing painful gas. It means you may need to look at the other clues, too.
You can read more in Why Newborns Cry Even When All Their Needs Are Met and Why You Can’t Always Stop Your Baby Crying.
2. What is infant colic?
Colic describes a pattern of excessive crying in an otherwise healthy infant. It usually begins in the first few weeks and improves by around three to four months of age. The exact cause isn’t fully understood. (NHS.uk)
You might notice your baby:
- Cries intensely for long periods and is difficult to soothe.
- Has episodes that seem to come out of nowhere.
- Clenches their fists, turns red or pulls their legs toward their tummy.
- Cries more during the afternoon or evening.
- Seems comfortable and feeds normally between episodes.
Traditionally, colic has often been described using the “three-hour rule”: crying for more than three hours a day, on at least three days a week, for three weeks. That can be a useful historical description, but you don’t need to wait three weeks to ask for help if you’re worried about your baby.
Colic is not a diagnosis of painful gas, and the classic body movements aren’t proof of abdominal pain. The label describes the crying pattern more reliably than it explains why the crying happens.
Why can a healthy baby cry so much?
There probably isn’t one explanation that applies to every baby. Developmental changes, individual temperament and difficulty settling may all contribute. A baby’s crying can also coincide with feeding, tiredness and the busy sensory experience of being awake.
Think of colic as a description of the weather, not a forecast of exactly what’s causing the storm. It tells you what the crying is like; it doesn’t identify one specific mechanism.
For more on this pattern, see Why Some Newborns Cry More Than Others and How Long Does the Newborn Witching Hour Last?.
3. What is reflux, and when does it cause problems?
Reflux happens when stomach contents move back up into the esophagus, sometimes reaching the mouth as spit-up. In babies, the system that normally helps keep milk in the stomach is still developing, and liquid feeds make regurgitation relatively easy.
This is why a baby can drink milk, burp, produce a surprisingly large-looking spit-up and then seem perfectly content.
Ordinary infant reflux is not automatically painful. A baby who spits up but feeds comfortably and gains weight may simply be what parents often call a “happy spitter.” Crying alone does not establish that reflux is causing discomfort. (HealthyChildren.org)
Reflux deserves closer assessment when you notice a pattern such as:
- Repeated distress during feeds or immediately afterward.
- Pulling away from the breast or bottle, or refusing feeds.
- Persistent feeding difficulties.
- Poor weight gain.
- Frequent vomiting accompanied by other concerning symptoms.
These signs don’t prove reflux disease, either. A healthcare professional can assess whether reflux, feeding difficulties or another condition might explain what’s happening.
What if my baby cries after a full feeding?
This is where the three categories can become confusing.
You feed your baby, they seem satisfied, and then the crying starts again. You may wonder whether they need more milk, whether they have gas, or whether the feed caused discomfort.
Several possibilities exist:
- They may still be hungry. Newborns can want another feed soon after the previous one, particularly during cluster feeding.
- They may need something other than milk. Tiredness, stimulation and the need for contact can overlap with hunger.
- Feeding itself may be uncomfortable. If crying consistently happens during or after feeds, look at the pattern rather than assuming it’s ordinary evening fussiness.
- Reflux may be contributing. This becomes more worth discussing when crying occurs alongside feeding difficulty, refusal or poor growth.
Don’t withhold a feed simply because you suspect tiredness or reflux. Respond to hunger cues, and seek feeding support if you’re concerned about milk transfer, bottle-feeding technique or your baby’s growth.
If your baby seems satisfied after a feed but starts crying again moments later, it doesn’t automatically mean they’re still hungry or have reflux. There are several possible explanations, from tiredness and the need for contact to feeding-related discomfort. Read more in Newborn Crying After Feeding: Is It Normal and What It Really Means.
Our related article, 8 Reasons Your Baby Is Crying Even After a Full Feeding, explores these overlapping possibilities in more detail.
4. What can you do when your baby keeps crying?
You don’t have to identify the exact cause before offering comfort. Start with the basics, then look for patterns.
- Check hunger cues. Offer a feed if your baby seems hungry, rather than relying solely on the time since the last feed.
- Try a quieter environment. Dim the lights, reduce noise and give your baby a chance to settle.
- Hold your baby comfortably upright while awake, particularly after feeding if this seems to help. Always follow safe-sleep guidance when putting them down.
- Notice the timing. Does the crying occur mainly in the evening, during feeds, after feeds, or throughout the day?
- Track feeding and symptoms if the pattern is persistent. Notes about feeds, vomiting, wet diapers and crying can help your clinician assess the situation.
Avoid starting reflux medicines, changing formula repeatedly or using anti-colic products without appropriate advice. Treatment depends on the actual problem, and not every crying baby has a digestive condition. (NHS.uk)
5. When should you seek medical advice?
Do not assume that intense crying is colic or reflux simply because your baby is young.
Contact your baby’s healthcare professional if your baby consistently cries during or after feeds, refuses feeds, isn’t gaining weight as expected, vomits repeatedly, has noticeably fewer wet diapers or seems to be in pain.
Seek urgent medical assessment if your baby has a temperature of 38°C or higher and is under three months old, has difficulty breathing, becomes blue or grey, is unusually floppy or difficult to wake, or has green or bloody vomit. Forceful or projectile vomiting also needs prompt assessment.
A sudden change in your baby’s usual cry or behaviour deserves attention, even if the baby was previously considered healthy.
For a fuller guide, see When Crying Isn’t Normal and When to Call Your Doctor.
Frequently asked questions
How can I tell colic from reflux?
Colic is a pattern of excessive crying in an otherwise healthy baby. Reflux describes milk moving back up from the stomach. Spitting up may suggest reflux, but it doesn’t prove that reflux is causing the crying. Feeding difficulties, refusal or poor weight gain warrant closer assessment.
Can a baby have both colic and reflux?
Yes, the patterns can overlap. But crying in a baby who spits up doesn’t automatically mean both conditions are present. A clinician can help determine whether reflux is contributing to the symptoms.
Is crying after every feed normal?
Occasional crying after feeding can happen. Persistent crying during or after feeds, especially alongside feeding refusal, repeated vomiting or poor weight gain, deserves assessment rather than being automatically attributed to colic.
When does colic usually go away?
Colic generally improves by around three to four months, although individual babies vary. If crying persists beyond this period, worsens or comes with other symptoms, discuss it with your baby’s healthcare professional.
Should I change my diet or my baby’s formula?
Not automatically. Colic alone doesn’t establish a food intolerance or allergy. If your baby has additional symptoms, such as blood in the stool, persistent vomiting, feeding difficulties or poor growth, seek medical advice before making significant dietary or formula changes.
The important distinction
A baby who cries intensely can still be healthy. A baby who spits up can still be comfortable. And a baby who cries after feeding can still be hungry.
The useful clues aren’t any single cry, grimace or spit-up. They’re the pattern over time, how your baby feeds and grows, and whether they seem well between episodes.
You don’t have to work out the diagnosis on your own. Your job is to notice what you’re seeing; your pediatrician can help you decide what it means.
Sources
- NHS — Colic
- NHS — Soothing a crying baby
- American Academy of Pediatrics — Abdominal Pain in Infants
- Wolke et al. — Systematic Review and Meta-Analysis of Fussing and Crying in Infants
Note: The information shared in this article is for educational purposes only and reflects personal experience and research. It is not intended as medical advice. If you have concerns about your health or your baby’s health, please consult a qualified healthcare professional.
