Infantile colic is condition that affects more than 10% of babies and their families. The reason, and hence proper treatment, for this condition is unknown and many causes have been suggested. One of the treatments that parents choose is chiropractic manipulation. In Denmark, almost 10,000 babies are each year treated by chiropractors, and a high proportion is due to colic. However, the effect of chiropractic treatment of infantile colic has not been properly scientifically evaluated.