KidsDirect

A colicky infant cries for hours for no known reason. The cry is often a fussy screaming. Colic begins in infants about 2-4 weeks old and can last 5 months. It is more common in boys and first-born children.

The exact cause of colic is unknown. Tiredness, food allergy, overly warm milk or overfeeding your baby may play a part. Stress in the home, loneliness and pain may also have a role. Your colicky infant may simply want to be held or to go to sleep. It is hard to treat colic since its cause is unknown. Holding, cuddling and rocking your baby usually works best.

What should you do?

Contact your doctor if: your baby seems to be in pain or acts sick, your baby has been crying constantly for more than 3 hours, your baby develops a high temperature and is less than 3 months of age.

Source: The PDR Family Guide, Encyclopedia of Medical Care (1997)