Why is my baby crying? A practical way to decode it

Newborn crying peaks at around six weeks, when a typical baby cries for two to three hours a day, and then declines steadily. That number is worth knowing because it reframes the question. A baby who cries a lot at six weeks is usually a normal baby at the peak of a normal curve — not a baby you are failing.

That said, cries are not interchangeable. Parents get better at distinguishing them within weeks, and the differences are real.

The main cry types

The clearest single distinction is between hunger and pain: a hunger cry builds; a pain cry starts at full volume. That difference alone resolves a lot of 3am uncertainty.

Check in this order

When you can't tell, work down the list. It takes about ninety seconds and solves most crying.

1. Hungry? Offer a feed. Even if it feels too soon — cluster feeding and growth spurts break the pattern.
2. Nappy? Some babies don't mind. Some mind intensely.
3. Wind? Hold upright against your shoulder and pat firmly. Bicycle the legs.
4. Too hot or cold? Feel the back of the neck or the chest, not hands or feet — cold hands are normal and mean nothing.
5. Tired? Check how long they've been awake against the wake window for their age. Past it, they need dark and quiet, not more entertainment.
6. Overstimulated? A dark, quiet room. Reduce input rather than adding to it.
7. Something physical? Check for a hair tourniquet wrapped around a finger, toe or penis — rare, easy to miss, and genuinely painful. Check for a scratch, a nappy tag, a strand of clothing.
8. Just needs contact? Skin-to-skin, movement, being worn in a sling. Wanting to be held is a legitimate need, not a habit you're creating.

What actually soothes

The techniques with the best evidence behind them all recreate conditions inside the womb:

• Swaddling — arms in, hips loose enough to move freely. Stop as soon as the baby shows signs of rolling.
• Side or stomach position while held — for soothing only, never for sleep.
• Shushing — loud white noise, roughly as loud as the crying. Inside the womb is not quiet.
• Swinging — small, fast, jiggling movements rather than large slow rocking.
• Sucking — breast, finger or dummy.

Used together, and in that order, these resolve a large share of ordinary crying. What doesn't help: bouncing harder, more light, more stimulation, or more people trying to help at once.

Colic: what it is and isn't

Colic is defined by the pattern, not by a cause: crying for more than three hours a day, more than three days a week, for more than three weeks, in a baby who is otherwise healthy and growing well. It typically starts around two weeks, peaks at six, and resolves by three to four months.

The honest position is that nobody is certain what causes it. Immature gut, an evolving microbiome, and a still-developing nervous system that struggles to regulate at the end of the day are the leading explanations. Cow's milk protein allergy accounts for a small minority and is worth ruling out if there's blood or mucus in the stool, eczema, or reflux with poor weight gain.

Things with at least some supporting evidence: probiotic drops containing L. reuteri for breastfed babies, a trial of removing cow's milk protein from a breastfeeding parent's diet where allergy is suspected, and — mainly — time. Gripe water and simethicone drops perform about as well as placebo in trials, which is not nothing when you're desperate, but it isn't treatment.

Cries that need medical help

Go to a doctor or hospital if crying comes with:

• A weak, whimpering, moaning cry, or a baby too quiet and floppy to cry properly — in a small baby this is more concerning than loud crying
• A high-pitched, shrill, continuous cry unlike anything you've heard from them
• Fever in a baby under 3 months — any temperature at or above 38 °C is an emergency at that age
• Refusing several feeds in a row
• Vomiting that is forceful or green
• Crying in waves with legs drawn up plus red jelly-like stool
• Fewer wet nappies, unusual drowsiness, or a bulging or sunken soft spot
• A rash that doesn't fade when pressed with a glass
• Any inconsolable crying after a fall or head injury

Frequently asked questions

This guide is general information for Indian parents, written from published paediatric guidance (IAP, WHO, AAP). It is not medical advice and cannot account for your baby specifically. Anything that worries you — feeding, breathing, fever, weight, a rash — is a call to your paediatrician, not a search. In an emergency, go to a hospital.