Evaluation of Colic The goal is to distinguish colic from other causes of excessive crying, particularly serious and / or treatable medical disorders such as Ear infection Urinary tract infection Meningitis Appendicitis Food allergy Acid reflux Constipation Intestinal obstruction Increased intracranial pressure Hair tourniquet Corneal abrasion Glaucoma Nonaccidental injury History History of present illness should establish the onset and duration of crying and response to attempts to console and thus determine whether the infant's crying is outside the normal range (up to 3 hours / day in a 6-week-old infant).