Colic is a behavioral syndrome in infants and is characterized by sudden attacks of excessive crying. Colic occurs mostly in the evenings, and without any detectable causes. Healthy, well-fed colicky infants aged between 2 weeks to 4 months cry incessantly for more than three hours a day, more than three days a week and for more than three weeks. It is important to note that sometimes other diseases are missed as the crying is assumed to be due to colic. Since babies cannot express their symptoms, and there may be no visible signs of a disease, crying is the only signal that all is not well.