INFANT COLIC - A syndrome in early infancy characterized by episodic loud crying, apparent abdominal pain (legs drawn up and rigid abdomen), and irritability. This common condition occurs in about 1 in 10 babies and lasts from 2-3 weeks of age to 3-4 months. Factors include swallowing air during feedings, overfeeding, parental anxiety, and cow's milk allergy. Parents should realize that colic is a benign condition and excessive crying is not harmful to the baby.