It usually starts in the first weeks, peaks around 6 weeks and eases by 3–4 months. The cause isn't fully understood and it isn't anyone's fault. Soothing, support and taking breaks help; see your doctor to rule out other causes if crying is extreme or you're worried.
Glossary
Colic
Colic describes frequent, intense crying in an otherwise healthy, well-fed baby — often defined as crying for more than three hours a day, three days a week, for three weeks.
Related guides
Colic and the period of PURPLE crying
Long bouts of crying in the early weeks are exhausting but normal, and they pass — here's how to cope and keep your baby safe.
Soothing a crying baby
Crying is how your baby talks to you — check the basics first, then try a few gentle calming tricks, and remember it's okay to put your baby down safely and take a breath.
Related terms
Sources
General information, not medical advice. For concerns about your child, talk with your doctor or child-health nurse.