Why is my baby crying? A calm checklist for every cry

By the Swaddle team ยท Reviewed October 25, 2026

Crying is how babies tell you something. Most of the time the reason is ordinary, and finding it is a process of elimination. This checklist goes from the most common causes to the less common ones.

First: is this urgent?

Call your pediatrician or emergency services now if your baby:

  • is under 3 months and has a temperature of 100.4 F (38 C) or higher
  • has trouble breathing, or blue or pale lips or skin
  • is hard to wake, floppy or unusually sleepy
  • has a weak, moaning or very high-pitched cry that is not like them
  • is vomiting green fluid, has blood in their poop, or has a swollen, hard tummy
  • has had far fewer wet diapers than usual

If none of these apply, work through the list below.

The crying checklist

  1. Hungry? Look for rooting, sucking on hands, smacking lips. Young babies feed often, sometimes every hour in the evening. When did they last eat?
  2. Tired? Yawning, staring off, rubbing eyes. Check how long they have been awake against wake windows for their age.
  3. Diaper? Wet, dirty, or a rash.
  4. Wind? Some babies need to burp during and after feeds. Hold them upright against your shoulder, or sitting on your lap, and pat their back.
  5. Too hot or too cold? Feel the chest or back of the neck. See what to wear to sleep.
  6. Too much going on? Noise, lights, visitors and handling can overwhelm young babies. Go somewhere dim and quiet.
  7. Wants to be held. Needing closeness is a real need, not a bad habit.
  8. Something uncomfortable? Check for a hair wrapped tightly around a finger or toe, a scratchy label, or clothing that is too tight.
  9. Teething? From about 4 to 6 months, drooling and chewing may come with fussiness.
  10. Unwell? A runny nose, cough, fever or change in feeding can all bring more crying.

When nothing works

Some babies cry a lot in the first months even when everything has been checked, especially in the evenings. This is often the normal crying peak described as the Period of PURPLE Crying. Try motion, holding, skin-to-skin, shushing or steady white noise, and take turns with someone else.

If you feel overwhelmed, it is OK to put your baby down safely on their back in the crib and step away for a few minutes. Never shake a baby.

Keep track of patterns

Writing down feeds, sleeps and diapers can make crying easier to understand. A cry 3 hours after the last feed means something different from a cry 30 minutes after a long nap. You can use our printable newborn log, or an app that shows at a glance when your baby last ate, slept and had a change.

Questions parents ask

What is the most common reason babies cry?

Hunger is the most common reason in young babies, followed by tiredness. Wet or dirty diapers, gas, temperature and needing comfort are also very common.

Can you tell why a baby is crying from the sound?

Parents often learn their own baby's cries over time, and some cries sound different (a pain cry is often sudden and high-pitched). Research shows it is hard to tell the reason from sound alone, so look at timing and context too: when they last ate, slept and were changed.

How long is it OK to let a baby cry?

There is no single answer. Responding to a young baby's cries is always OK. If you need a break, it is safe to put your baby on their back in the crib and step away for a few minutes.

When is crying an emergency?

Call your doctor or emergency services if your baby is under 3 months with a temperature of 100.4 F (38 C) or more, has trouble breathing, is hard to wake, floppy, has a weak or high-pitched cry, or has blue or pale lips or skin.

Sources

  1. American Academy of Pediatrics: Responding to Your Baby's Cries (healthychildren.org)
  2. NHS: Soothing a crying baby
  3. Wolke D, et al. Systematic review and meta-analysis: fussing and crying durations and prevalence of colic in infants. J Pediatr 2017

This page is general information from the sources above, written by the Swaddle team and last reviewed October 25, 2026. It is not medical advice and it is not a substitute for your pediatrician. Every baby is different. If something feels wrong, call your doctor. In an emergency, call 911 (US) or your local emergency number. How we write these pages.

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