<unk>  is defined as episodes of crying for more than three hours a day, for more than three days a week for at least a three-week duration in an otherwise healthy child. It is most common around six weeks of age and gets better by six months of age. By contrast, infants normally cry an average of just over two hours a day, with the duration peaking at six weeks. With<unk> , periods of crying most commonly happen in the evening and for no obvious reason. Associated symptoms may include legs pulled up to the stomach, a flushed face, clenched hands, and a wrinkled brow. The cry is often high pitched (piercing). Effect on the family An infant with<unk>  may affect family stability and be a cause of short-term anxiety or depression in the father and mother. It may also contribute to exhaustion and stress in the parents. Persistent infant crying has been associated with severe marital discord, postpartum depression, early termination of breastfeeding, frequent visits to doctors, and a quadrupling of excessive laboratory tests and prescription of medication for acid reflux. Babies with<unk>  may be exposed to abuse, especially shaken<unk>  syndrome. In 2019 Cochrane conducted a systematic review on parent training programs for managing infantile<unk> . Seven studies with over 1100 participants met inclusion criteria. Limited evidence was found for the effectiveness of such programs, one meta-analysis showed some reduction in crying time.
Baby colic
Hernia
Devon colic
Testicular torsion
Meconium peritonitis
Hair tourniquet
Nipple discharge
Corneal abrasion