Colic Checker

Colic is the name for intense, hard-to-console crying in a baby who is otherwise healthy, feeding well, and growing normally. The classic definition is the 'rule of threes': crying for more than 3 hours a day, on more than 3 days a week, for more than 3 weeks, typically starting around 2 to 3 weeks of age, peaking near 6 weeks, clustering in the evening, and resolving on its own by 3 to 4 months. It affects up to about 1 in 4 babies, breastfed and formula-fed alike, firstborns and later babies, and — this matters — it is not caused by anything you did. Despite a century of study, no single cause has been proven; an immature nervous system adjusting to the world, normal gut development, and temperament all likely play parts. Colic is a description of crying, not a disease — which is why the medical red flags have to be cleared before the word applies.

By what the baby is like between and around the crying. A colicky baby is well: feeding normally, gaining weight, alert and content in the calm stretches, with no fever, vomiting, or unusual stools. Crying plus any medical sign is a different conversation — fever (100.4°F/38°C or higher is an emergency under 3 months), forceful or green vomiting, blood in the stool, poor feeding or weight gain, unusual sleepiness or floppiness, breathing changes, a groin bulge, or crying that starts after a fall. One more that isn't colic: a baby who cannot be consoled at all, hour after hour, should be examined the same day even without any other sign — colicky babies are hard to console, but truly inconsolable crying is a medical symptom until proven otherwise. When in doubt, the pediatrician's exam is exactly the right next step; ruling out the medical causes is quick, and colic is then a diagnosis you can trust.

No single trick works for every baby, so think in terms of a rotation of soothing tools: rhythmic motion (rocking, a walk in the carrier or stroller, a drive), sucking (breast, pacifier, or a clean finger), snug swaddling for sleep, white noise or a shushing sound near the ear, a warm bath, a gentle tummy massage, and holding the baby on their side or stomach across your forearm while awake and supervised (back for every sleep, always). Reduce stimulation in the evening run-up — dim lights, quiet, one calm handler. Feeding tweaks help a subset: smaller more frequent feeds, thorough burping, and keeping the baby upright a while after feeds. Talk to the pediatrician before switching formula or cutting foods from a breastfeeding diet — evidence for those is limited and they occasionally help specific babies (a suspected milk-protein allergy has other signs too). Skip unproven remedies: simethicone drops rarely beat placebo, and homeopathic 'colic drops' and teas aren't recommended for infants at all.

First: what you're feeling is the normal human response to a crying baby, and every guideline on colic says the same two things out loud. One — it is okay to put your baby down, on their back, in the crib or bassinet, and walk away for 10 to 15 minutes to breathe, once you've checked the basics (fed, burped, clean diaper, comfortable temperature). A safe baby crying alone for ten minutes is fine; a parent past their limit holding a baby is the dangerous combination. Two — never, ever shake a baby. Shaking can cause permanent brain injury or death in seconds, and it happens most often in exactly this scenario: an exhausted caregiver and endless crying. Tag-team with a partner if you can, call a friend or family member to take a shift, and if the frustration keeps peaking, tell your pediatrician plainly — that's not weakness, it's the system working. Crying-baby helplines exist in many areas, and your own sleep and support are part of the treatment plan.

Colic has one genuinely merciful feature: it ends, usually on a schedule. The typical arc starts at 2 to 3 weeks, peaks around 6 weeks — the hardest stretch, worth knowing so you can see the far side of it — then eases steadily, with the large majority of babies done by 3 to 4 months and nearly all by 5. It leaves no trace: colicky babies grow, develop, attach, and sleep no differently later on than their calmer peers, and colic predicts nothing about temperament or health down the road. If intense crying persists past about 5 months, that's outside the colic shape and worth a fresh conversation with the pediatrician. In the meantime, the goal isn't to end the crying — nobody reliably can — it's to get everyone through the peak weeks safely: soothe in rotation, share the load, and use the safe-break rule freely.

Yes. This checker runs entirely in your browser: your answers are evaluated on your own device and are never sent to a server, saved, or shared — close the tab and they're gone. There's no account and no tracking. What you get back is general educational information based on AAP HealthyChildren and MedlinePlus guidance; it is not a diagnosis, and it can't examine your baby. Colic is only ever confirmed by a clinician who has ruled out the medical causes — this tool's job is to help you see which side of that line your baby's crying is on, and to say the safety message out loud.