Newborns cry one to four hours a day, and that’s completely normal. Crying is your baby’s only way to communicate, and most of the time it signals a basic need like hunger, discomfort, or tiredness rather than anything medically wrong. That said, understanding the patterns and causes behind the crying can help you respond faster, soothe more effectively, and recognize the rare situations that do need medical attention.
How Much Crying Is Normal
All babies cry, but the amount changes dramatically over the first few months. Crying typically starts increasing around two weeks of age, peaks somewhere around six weeks, and then gradually tapers off by three to five months. This arc is so predictable that pediatric researchers gave it a name: the Period of PURPLE Crying. The acronym stands for Peak of crying, Unexpected, Resists soothing, Pain-like face, Long-lasting, and Evening. If your baby’s worst crying happens in the late afternoon or evening and nothing you do seems to help, you’re likely in the thick of this developmental phase. It’s not caused by something you’re doing wrong, and it does end.
Colic is diagnosed when crying exceeds three hours a day, more than three days a week, for longer than three weeks. About one in five babies meets that threshold. Even colicky babies are usually healthy and gaining weight normally. The crying feels relentless, but colic almost always resolves on its own by four to five months.
The Most Common Reasons Babies Cry
Hunger
Crying is actually a late hunger signal. Before your baby reaches the point of wailing, you’ll often see earlier cues: putting hands to their mouth, turning their head toward your breast or a bottle (called rooting), smacking or licking their lips, or clenching their fists. Catching these signs early means you can start a feeding while your baby is still calm, which makes latching easier and reduces the total amount of crying you both deal with. Newborns eat frequently, sometimes every one to three hours, and growth spurts can temporarily increase that demand even further.
Overtiredness and Overstimulation
A baby who needs sleep often looks a lot like a baby who needs something else entirely. Overtired crying tends to be intense and hard to soothe, which tricks many parents into thinking the problem is pain or hunger. The signs of overstimulation are subtle at first: looking away as if upset, making jerky movements, clenching fists, or waving arms and legs. If you miss those early signals, the fussiness escalates quickly. Newborns can only handle about 45 minutes to an hour of awake time before they need to sleep again, and even older babies tire faster than most parents expect.
The fix is simple but counterintuitive. Instead of adding more stimulation (bouncing, talking, showing toys), move to a dim, quiet space. Reduce input. Many babies who seem inconsolable will settle once the noise and activity around them drops.
Discomfort
Gas, a wet diaper, being too warm or too cold, a scratchy clothing tag, or even a hair wrapped tightly around a finger or toe (called a hair tourniquet) can all trigger crying. These causes are worth checking systematically when the obvious needs have been met. A quick head-to-toe scan, including removing socks and mittens to check fingers and toes, can catch things you’d otherwise miss.
Digestive Problems That Cause Extra Crying
Reflux
Some spit-up after feedings is normal in babies. Reflux becomes a problem when stomach acid irritates the esophagus, leading to pain. Babies with reflux often arch their back during or right after eating, refuse to eat or eat poorly, gag or have trouble swallowing, and cry especially hard after feedings. Some babies have “silent” reflux, where the acid comes up but they don’t visibly spit up, making it harder to identify. Poor weight gain, wheezing, or frequent forceful vomiting are signs that reflux may need treatment.
Cow’s Milk Protein Sensitivity
Cow’s milk protein is one of the most common food triggers for fussy babies. In breastfed infants, the proteins pass through the mother’s diet into breast milk. In formula-fed babies, standard formulas are cow’s milk-based. Symptoms typically appear in the first two to eight weeks of life and can range from mild (gassiness, fussiness, loose stools) to more concerning (streaks of blood in the stool, frequent vomiting, poor weight gain, or refusing to eat). If you notice bloody stools or your baby seems to be in genuine discomfort after most feedings, it’s worth discussing with your pediatrician. Switching to a hydrolyzed formula or eliminating dairy from the breastfeeding parent’s diet often leads to noticeable improvement within a couple of weeks.
Five Soothing Techniques That Work
A well-known approach called the 5 S’s was designed to recreate the sensory environment of the womb, which is why it works so well for young infants. The techniques are most effective when used in combination.
- Swaddling. A snug wrap provides warmth and security that mimics the tight space of the uterus. Make sure the swaddle is firm around the arms but loose around the hips.
- Side or stomach position. Holding your baby on their left side can help with digestion and triggers a calming response. This is a holding position only; always place babies on their backs to sleep.
- Shushing. Loud, sustained “shhhh” sounds imitate the noise of blood rushing through the placenta, which was your baby’s constant soundtrack for nine months. The sound needs to be louder than you’d expect, roughly matching the volume of the crying itself. White noise machines work on the same principle.
- Swinging. Gentle, rhythmic motion, like rocking in your arms or a baby swing, recreates the movement your baby felt when you walked during pregnancy. Small, controlled movements work best.
- Sucking. Babies find sucking deeply calming even when they’re not hungry. A pacifier or a clean finger can activate this reflex. A baby physically cannot cry and suck at the same time, so once sucking starts, the crying stops.
Red Flags That Need Medical Attention
Most crying is normal. But certain symptoms alongside the crying mean you should call your pediatrician promptly:
- Fever in a newborn. Any fever in a baby younger than three months needs immediate medical evaluation. For babies three to six months old, a temperature above 100.4°F (38°C) warrants a call. So does any fever that lasts more than three days in older infants.
- Feeding changes. Missing two or more feedings in a row or eating poorly.
- Dehydration signs. Fewer wet diapers than usual, crying without tears, dry mouth, or a sunken soft spot on the head.
- Vomiting. Forceful vomiting after feedings, or not keeping any liquids down for eight hours.
- Unusual alertness changes. Sleeping much more than usual, being very hard to wake, or seeming floppy and limp.
- Skin color changes. Skin or lips that look blue, purple, or gray.
- Stool changes. Blood in the stool, very watery diarrhea (more than three loose stools), or significant constipation with a bloated belly.
If the crying itself is dramatically different from your baby’s usual pattern, higher pitched, weaker, or accompanied by pain or fussiness that keeps getting worse instead of cycling like normal fussiness, that change alone is worth a call.
How Crying Affects You as a Parent
Postpartum depression affects 10 to 20% of mothers in the first few months, and infant crying is directly linked to it. Research has found that more crying in the first six weeks correlates with increasing depressive symptoms in mothers, and in some cases, prolonged crying can actually trigger depression. The relationship runs both directions: babies of depressed mothers tend to cry more overall, and depressed parents perceive their baby’s cries differently, often rating them as less urgent, which can delay response times.
If you find yourself feeling detached, overwhelmed to the point of not functioning, or unable to respond to your baby’s cries, that’s not a personal failure. It’s a recognized medical pattern with effective treatments. It’s also important to know that if the crying is pushing you toward a breaking point, putting your baby down in a safe space like a crib and stepping away for a few minutes is always the right call. Babies can cry safely in a crib. No baby has ever been harmed by being set down for five minutes while a parent takes a breath.