Colic Newborn: The Complete Guide

Colic is one of the most exhausting parts of early parenthood: a healthy baby who cries hard, for hours, for no obvious reason, often in the evening. It is common, it is not your fault, and it almost always passes. This complete guide explains what colic actually is, how to tell it from other causes of crying, the soothing techniques worth trying, and the signs that mean you should call your pediatrician, so you can get through the stretch with a clearer head and a plan.

What colic actually is

Colic describes frequent, prolonged, intense crying in an otherwise healthy, well-fed baby. A common rule of thumb is the rule of threes: crying for more than three hours a day, more than three days a week, for more than three weeks. It typically starts in the first few weeks, often peaks around six weeks, and eases by around three to four months.

The cause is not fully understood, and that uncertainty is part of what makes it so frustrating. What matters most is that colic, by definition, happens in a baby who is growing well and is healthy between crying spells. It is a pattern of crying, not a disease, and it does not mean you are doing anything wrong.

• Intense, hard-to-soothe crying: often more like screaming, and difficult to calm.
• Predictable timing: frequently clusters in the late afternoon and evening.
• Physical signs: a red face, clenched fists, and legs drawn up are common but not universal.

Is it colic or something else

Because colic is defined by ruling other things out, it helps to know what else can cause intense crying. The table below compares common possibilities. It is a general reference, not a diagnostic tool: your pediatrician is the right person to make the call.

Soothing techniques worth trying

No single trick works for every baby, so parents usually build a small toolkit and rotate through it. Many of these ideas echo the calming methods pediatricians recommend for fussy newborns. Try one at a time and give it a few minutes before moving on.

• Swaddling: a snug wrap can calm the startle reflex; see our newborn swaddle guide.
• Motion: rocking, a gentle walk, or a stroller ride can settle some babies; a baby swing helps others.
• White noise: a steady shushing sound or a white noise machine mimics the womb for many babies.
• Sucking: a pacifier can be soothing for babies who take one.
• Feeding adjustments: paced feeding and thorough burping, or trying anti-colic bottles , may reduce swallowed air.
• Skin to skin and holding: closeness, warmth, and a calm voice reassure a distressed baby.

Feeding, wind, and colic

Feeding is often where parents look first, and small changes can sometimes ease fussiness. Whether you breastfeed or bottle feed, focus on reducing swallowed air and keeping feeds calm. For the wider feeding picture, see our guides to breast milk and the best newborn bottles.

• Burp often: pause to burp during and after every feed to release trapped wind.
• Slow the flow: paced bottle feeding and a slow-flow teat reduce gulping and air intake.
• Keep feeds upright: a more upright position can help some babies swallow less air.
• Do not change formula alone: only switch or adjust feeding on your pediatrician's advice.

When to call your pediatrician

Colic is common and harmless, but some crying signals something that needs attention. The American Academy of Pediatrics, the NHS, and your own provider are the right sources when you are unsure. Seek advice promptly if you notice any of the following.

• Fever: any fever in a baby under three months needs urgent medical attention.
• Feeding or output changes: refusing feeds, far fewer wet nappies, or vomiting.
• A different or weak cry: a high-pitched, unusual, or unusually weak cry.
• Lethargy or floppiness: hard to wake, unusually still, or not responding as normal.
• Sudden change: crying that starts abruptly and does not fit the usual pattern.

Coping and looking after yourself

Relentless crying is genuinely hard on parents, and your wellbeing matters. If you feel overwhelmed, it is always okay to put your baby down safely in their cot and step away for a few minutes to breathe. Never shake a baby: frustration is normal, but taking a short, safe break is the healthy response.

• Take turns: swap with a partner or trusted helper so no one is on duty non-stop.
• Use safe breaks: a crying baby is safe in an empty cot while you reset for a moment.
• Ask for support: talk to your provider if you feel low, anxious, or at the end of your rope.
• Remember it ends: colic almost always fades by three to four months.

For the broader early-days picture, our complete newborn guide covers feeding, safe sleep, and health signs alongside settling a fussy baby.

Colic can feel endless in the moment, but it is a common, temporary pattern in a healthy baby, not a sign that anything is wrong with you or your child. Rule out other causes with your pediatrician, build a small toolkit of soothing techniques, protect your own rest and support, and hold on to the reassurance that this stretch will pass, usually within the first few months.