Neonatal colic is a condition that is manifested by severe, persistent crying and screaming without a clear cause. It occurs in the first 2-3 weeks of life and is significantly less likely to occur after 3-4 weeks, although it can also occur in the first 12 months of life, often suddenly, with severe crying, sometimes lasting 2-3 hours, but basically relieving itself. Colic can occur at any time, most often at dusk or in the evening, and almost always at a fixed time of day. If the baby cries, screams or is agitated for no reason and lasts longer than normal, excluding hunger, wet diapers, hot or cold discomfort, etc., it is basically recognized as neonatal colic. Children with colic may have sudden screams, bouts of crying, or even hoarse crying. Some babies may also have a shaking head, arching of the body, and a bulging abdomen. They are not easily soothed by cuddling or rocking; sometimes they improve slightly after defecation or farting. Parents should pay attention to their children, if they are prone to crying and cannot be easily soothed, if they eat less milk than before, if they are bloated, if they are irritable and cry in paroxysms and cannot be soothed, if they refuse to eat, if they are bloated, if they are in bad spirits, if they vomit, etc., they must go to the hospital in time.