Baby Colic Guide: Signs, Safe Soothing and When to Call

Baby colic can be exhausting because the crying may continue even after you have checked feeding, the diaper, temperature, tiredness, and comfort.

Colic is a description of a crying pattern in an otherwise well infant. It should not be used as an explanation for every long crying episode without considering illness, feeding problems, reflux, allergy, injury, or another cause.

As a father of four and a grandfather of four, I have learned that long crying periods can make adults feel pressure to keep adding stronger and stronger remedies. The safer approach is the opposite: check the baby carefully, use gentle comfort, and get medical help when the pattern does not look like your baby's usual behavior.

This guide explains what colic means, common patterns, what the rule of threes does and does not tell you, how colic differs from gas and reflux, safe soothing, feeding questions, probiotics, warning signs, and caregiver safety.

What Is Baby Colic?

Colic is a term used for recurrent periods of excessive crying, fussing, or irritability in a young baby who otherwise appears healthy.

The key point is that colic is considered only after basic needs and medical concerns have been considered.

A baby with true colic is generally well between episodes, feeds and grows appropriately, and does not have another illness explaining the crying.

Is the Rule of Threes Still Useful?

The classic description of colic is often called the rule of threes: crying for about three hours a day, on about three days a week, for several weeks.

It can help describe a traditional pattern, but it should not become a home diagnostic test.

You do not need to wait until your baby has cried for a certain number of weeks before asking the pediatrician for advice.

If crying is severe, new, unusual, or associated with another symptom, seek medical advice sooner.

How Common Is Colic?

Estimates vary because studies and health systems use different definitions.

NHS parent guidance describes colic as common and notes that it can affect roughly one in five babies.

Instead of relying on one exact percentage, focus on whether your baby's pattern fits an otherwise healthy infant with recurrent difficult crying.

When Does Colic Usually Start?

Colic often becomes noticeable during the first several weeks of life rather than immediately after birth.

Many sources describe crying increasing during the early weeks and becoming less intense as babies mature.

That is a general pattern, not a schedule that every baby follows.

Does Colic Always Peak at 6 Weeks?

No exact week is guaranteed.

AAP parent guidance notes that regular fussing often peaks around the early weeks, commonly near 6 weeks, and then gradually decreases.

Do not assume a difficult week is automatically colic because the baby's age matches a chart.

When Does Baby Colic End?

Most colic improves as the baby gets older and often settles during the first few months.

NHS guidance says it usually gets better by around 3 or 4 months.

Some babies improve earlier and some later.

If intense unexplained crying continues beyond the expected early infancy period, discuss it with the pediatrician instead of assuming the baby simply has prolonged colic.

What Does Colic Crying Look Like?

Parents may notice long periods of crying that are difficult to soothe.

During intense crying, a baby may:

• Clench the fists
• Pull the legs toward the abdomen
• Arch the back
• Become red in the face
• Pass gas
• Seem difficult to settle

These behaviors can occur with colic, but none of them proves the diagnosis.

Can You Diagnose Colic From the Sound of the Cry?

No.

A crying baby may sound intense, sharp, frantic, weak, or different from usual for many reasons.

Do not use a particular cry sound as proof that the baby has colic, gas, reflux, or pain.

A major change from your baby's normal cry is more important than trying to label a specific cry type.

For the broader topic, read our newborn crying guide.

Does Colic Happen Only in the Evening?

No.

Many young babies have more difficult crying periods later in the day, and AAP and NHS guidance both describe evening fussiness as common.

But colic is not defined by one clock time such as 5 PM to 11 PM.

Do not dismiss daytime crying simply because it does not fit an evening pattern.

What Causes Baby Colic?

The exact cause is not known.

That is important because it means parents should be cautious about explanations that sound certain.

Researchers have explored digestive function, gut bacteria, feeding factors, nervous system development, sensory regulation, and other possibilities, but no single cause explains every baby with colic.

Is Colic Caused by an Immature Digestive System?

That is a theory, not a proven explanation for every baby.

A young infant's digestive system is still developing, but long crying should not automatically be blamed on digestion.

Is Colic Caused by Gas?

Not necessarily.

Babies with colic may pass gas or pull their legs up, but crying itself can make babies swallow air.

So gas can appear during or after a long crying episode without being the original cause.

For gas specific care, read our newborn gas relief guide.

What Is the Difference Between Colic and Gas?

Gas describes air in the digestive tract and may cause temporary discomfort.

Colic describes a pattern of prolonged unexplained crying or fussiness in an otherwise healthy young infant.

Passing gas after crying does not prove that gas caused the episode.

What Is the Difference Between Colic and Reflux?

Reflux involves stomach contents moving back into the esophagus and may include visible spit up.

Many healthy babies spit up without pain.

Feeding refusal, swallowing difficulty, repeated forceful vomiting, blood or bile in vomit, or poor growth should not be labeled as colic.

Read our newborn reflux guide.

Can Cow Milk Protein Allergy Look Like Colic?

Sometimes.

Colic like crying can occur alongside food allergy symptoms, but crying alone does not diagnose cow milk protein allergy.

Reasons for a clinician to consider allergy can include a combination of symptoms such as:

• Blood or mucus in stool
• Significant eczema
• Repeated vomiting
• Feeding refusal
• Poor growth
• Other allergic symptoms

Do not begin a broad maternal elimination diet or switch formulas repeatedly based on crying alone.

Is Colic the Same as a Fussy Newborn?

No.

Fussiness can include brief crying, squirming, difficulty settling, frequent need for contact, or feeding related irritability.

Colic usually refers to more recurrent and prolonged episodes in an otherwise healthy infant.

For everyday troubleshooting, read our fussy newborn guide.

How Does Colic Differ From Normal Newborn Crying?

All newborns cry, and healthy babies can have difficult periods.

Colic is a label for recurrent unexplained crying that is more prolonged or difficult than the family's usual pattern.

There is no need to force every crying episode into either a normal or colic category at home.

What Should You Check Before Assuming Colic?

Check:

• Hunger cues
• How the last feed went
• Diaper needs
• Temperature and clothing
• Tiredness and overstimulation
• Vomiting
• Stool changes
• Wet diapers
• Breathing
• Skin color
• Alertness
• Possible injury

If anything looks abnormal, do not stop at the label colic.

How Can You Soothe a Baby With Colic Safely?

There is no single method that works for every baby.

After checking basic needs, options include:

• Secure holding
• Gentle rocking or swaying
• Quiet talking or singing
• A calm repetitive sound at a comfortable level
• Safe swaddling if appropriate
• A pacifier if appropriate
• A quieter lower stimulation environment
• A warm bath if the caregiver is alert and able to supervise safely

For the complete soothing topic, read our best ways to soothe a newborn.

Should White Noise Be Loud to Stop Colic?

No.

The old version of this article said white noise needed to be loud and suggested a vacuum cleaner, hair dryer, or sound machine on high.

That is not advice I recommend.

If you use a repetitive calming sound, keep it at a comfortable household level and keep the source away from the baby's head.

Should You Rock or Bounce a Colicky Baby Vigorously?

No.

Movement should be gentle and controlled.

Slow rocking, swaying, or walking can be tried while supporting the head and neck.

Do not use forceful bouncing or vigorous rocking.

Should You Bounce on an Exercise Ball With a Colicky Baby?

I do not recommend relying on unstable equipment while holding a crying baby, especially when the caregiver is exhausted.

Use stable, gentle movement instead.

Should You Take a Baby for a Car Ride to Treat Colic?

A car ride is not a preferred colic treatment.

Use a car seat for travel, not as a routine sleep or soothing device.

If a baby falls asleep in a car seat outside travel, move the baby to a firm, flat, level infant sleep surface as soon as practical.

Can You Hold a Colicky Baby on the Side or Stomach?

An awake, supervised baby may be held in different positions while the head and neck are supported and the airway is clear.

For sleep, always place the baby on the back.

Side or stomach sleeping is not a treatment for colic.

Can Swaddling Help Colic?

Swaddling may calm some young babies.

If you swaddle:

• Always place the baby on the back for sleep
• Do not restrict breathing
• Allow the hips to move
• Do not use weighted swaddles
• Stop when the baby shows signs of trying to roll

AAP safe sleep guidance says swaddling does not reduce SIDS risk.

What Is the Safest Sleep Setup After a Colic Episode?

Read our safe sleep for newborns guide.

Can a Warm Bath Help?

A warm bath may calm some babies, but it is optional and does not treat the cause of colic.

Only use a bath when you are alert enough to provide continuous hands on supervision.

Does Baby Massage Cure Colic?

No massage technique has to be used, and massage should not be presented as a cure.

Gentle touch may be relaxing for some awake babies.

Stop if the baby becomes more upset or if the abdomen is swollen, hard, or painful.

Do Gas Drops Treat Colic?

Simethicone gas drops are not a proven cure for colic.

If you are considering any medicine for a young infant, discuss the product and dose with your pediatrician.

Does Gripe Water Treat Colic?

Do not rely on gripe water as a colic treatment.

Products vary in ingredients and quality.

Ask your pediatrician before giving a newborn any herbal, supplement, or gripe product.

Do Probiotics Help Infant Colic?

Research is more nuanced than saying all probiotics work.

Some studies and meta analyses suggest that the specific strain Lactobacillus reuteri DSM 17938 may reduce crying in some breastfed infants with colic.

Evidence is less certain for formula fed infants and for other probiotic strains.

Do not buy a generic probiotic and assume it is equivalent. Ask your pediatrician about the exact strain, dose, feeding method, gestational history, and your baby's health.

Should Breastfeeding Parents Remove Dairy for Colic?

Not routinely.

A targeted elimination may be considered by a clinician when symptoms suggest cow milk protein allergy or another food allergy.

Do not remove dairy, soy, eggs, wheat, caffeine, citrus, vegetables, and other foods as a general colic diet.

Should You Change Formula for Colic?

Do not repeatedly change formula for crying alone.

A clinician may recommend a specific formula trial if allergy or another feeding problem is suspected.

Keep the plan targeted so you can tell whether a change actually helped.

Should You Give Smaller More Frequent Feeds for Colic?

Not as a universal rule.

Feeding changes should fit the baby's hunger cues, fullness cues, growth, feeding method, and any medical feeding plan.

If your baby seems uncomfortable during or after feeds, have the feeding itself assessed rather than simply reducing every feed.

Does Burping Prevent Colic?

No.

Burping may help a baby who swallowed air while feeding, but it does not prevent or cure colic.

Not every baby needs to burp at fixed intervals during every feed.

Can Paced Bottle Feeding Help?

A responsive bottle feeding approach can help caregivers notice pauses, breathing, hunger cues, and fullness cues.

If bottle feeding seems difficult, ask your pediatrician or feeding professional to review nipple flow, position, swallowing, and volume.

Should Chiropractic or Cranial Manipulation Be Used for Colic?

I would not recommend spinal or cranial manipulation as a routine infant colic treatment.

NHS guidance notes that there is little evidence these approaches help and that they may cause harm.

When Should a Pediatrician Evaluate Possible Colic?

Contact your pediatrician if:

• The crying is new or suddenly much worse
• Your baby cannot be consoled and the pattern is unusual
• Your baby feeds much less than usual
• There is repeated vomiting
• There is blood in stool
• There are clearly fewer wet diapers
• Your baby is unusually sleepy or difficult to wake
• Your baby is not gaining weight as expected
• You are worried that something is wrong

You do not need to prove that the crying meets a colic formula before calling.

Which Signs Need Urgent Medical Help?

What About Fever in a Baby With Colic?

Fever should not be blamed on colic.

If your baby is 3 months old or younger and has a rectal temperature of 100.4°F or 38°C or higher, call the pediatrician immediately.

Read our newborn fever guide.

Should You Test Every Baby With Colic?

No.

Testing depends on the baby's history, examination, feeding, growth, and associated symptoms.

A healthy growing baby with a typical pattern may not need laboratory or imaging tests, while a baby with vomiting, poor growth, blood in stool, fever, abnormal examination findings, or another concerning symptom may need further evaluation.

What Should Caregivers Do When Colic Becomes Overwhelming?

Long crying episodes can exhaust even calm adults.

If you feel yourself losing control, use a safe break.

Why Is Shaking a Baby So Dangerous?

Violent shaking or impact can cause abusive head trauma, brain injury, bleeding, disability, seizures, or death.

Make sure every caregiver understands this before they are alone with the baby.

How Can Families Share the Work During Colic?

Use practical support when available.

For example:

• Take turns holding and soothing
• Let one caregiver sleep while another handles a difficult period
• Ask a trusted adult for a short break
• Keep food, water, and basic household needs simple
• Tell the pediatrician if the family is struggling to cope

You do not need a rigid evening shift schedule. The goal is simply to reduce exhaustion and keep everyone safe.

Can Colic Affect Parent Mental Health?

Persistent infant crying can add major stress to a household.

If a parent or caregiver develops persistent hopelessness, severe anxiety, panic, inability to function, or frightening thoughts, contact a healthcare professional promptly.

Thoughts of harming yourself or the baby require immediate help from local emergency or crisis services.

Does Colic Harm a Baby's Development?

Colic in an otherwise healthy infant is generally considered self limited and does not mean the baby is destined to have developmental or behavioral problems.

Still, avoid absolute promises about every child.

If the baby is not feeding, growing, interacting, or developing as expected, the pediatrician should reassess the situation rather than assuming colic explains everything.

What I Have Learned as a Father and Grandfather

As a father of four and a grandfather of four, I have learned that prolonged crying can make a family feel as if they must keep finding a new trick.

That often creates more noise, more movement, more products, and more stress.

A safer plan is simpler: check the baby, use one gentle calming method at a time, keep sleep safe, and ask for medical help when something looks different from the baby's normal pattern.

My parenting experience shapes the practical side of this guide. Colic is a medical diagnosis of exclusion, and persistent crying, fever, feeding problems, vomiting, dehydration, blood in stool, poor growth, breathing changes, and unusual responsiveness should be evaluated by qualified healthcare professionals.

Baby Colic Checklist

Conclusion

Baby colic is a difficult crying pattern, but it should never become a label that stops parents from checking for feeding problems, illness, reflux, allergy, injury, or another cause.

Use gentle soothing, keep sleep safe, and avoid extreme movement, loud sound, unnecessary remedies, and random feeding changes.

Your next step: If your baby has repeated long crying episodes, write down when they happen, how feeding goes, wet diapers, vomiting, stool changes, and how the baby acts between episodes. That information is more useful to your pediatrician than trying to prove a strict colic formula.

Sources and References

1. American Academy of Pediatrics, Colic Relief Tips for Parents
2. NHS, Colic
3. American Academy of Pediatrics, How to Keep Your Sleeping Baby Safe
4. American Academy of Pediatrics, Fever and Your Baby
5. PubMed, 2023 Systematic Review and Meta Analysis of Probiotics for Infantile Colic

FAQs About Baby Colic

What is baby colic?

Baby colic is a term used for recurrent, prolonged crying or fussiness in a young infant who otherwise appears healthy and has no obvious cause after basic needs and medical concerns are considered. The older rule of threes is a historical description, not a home test that parents must satisfy before asking for help.

Is colic caused by gas?

Not necessarily. Babies with colic may pass gas, pull up their legs, or swallow more air while crying, but those signs do not prove gas is the cause. If feeding or gas seems to be a major part of the problem, discuss the pattern with your pediatrician.

How can I soothe a baby with colic safely?

Start by checking hunger, diaper needs, temperature, feeding comfort, and illness signs. Then try secure holding, gentle rocking or swaying, calm sound at a comfortable level, safe swaddling when appropriate, a pacifier, or a quieter environment. If the baby falls asleep, place the baby on the back on a firm, flat, level sleep surface.

Should I change formula or remove foods from my diet for colic?

Do not make broad diet changes or repeatedly switch formula for crying alone. A clinician may recommend a targeted trial when there are additional reasons to suspect cow milk protein allergy or another feeding problem, such as blood in stool, significant eczema, repeated vomiting, feeding refusal, or poor growth.

Do probiotics help baby colic?

Evidence is strain specific and is strongest for some breastfed infants using Lactobacillus reuteri DSM 17938. Probiotics are not a universal colic treatment, so discuss the exact product, strain, dose, and your baby's health with the pediatrician before using one.

When should I call the pediatrician about colic or excessive crying?

Call for new or persistent inconsolable crying, poor feeding, repeated vomiting, blood in stool, clearly fewer wet diapers, unusual sleepiness, breathing difficulty, or a major behavior change. For a baby 3 months or younger, a rectal temperature of 100.4°F or 38°C or higher requires an immediate call.