1 Examples of causes of anal itching include hemorrhoids, anal fissures, pinworms, foods, medications, and other diseases or conditions. 2  Additional symptoms associated with anal itching include burning and pain if the anal skin is traumatized by scratching.
Rarely, infant constipation is caused by an underlying condition, such as Hirschsprung's disease, hypothyroidism or cystic fibrosis. If infant constipation persists despite dietary changes or is accompanied by other signs or symptoms â such as vomiting or rectal bleeding â contact your baby's doctor.
Symptoms. Fussing and crying are normal for infants, and a fussy baby doesn't necessarily have colic. In an otherwise healthy, well-fed baby, signs of colic include: 1  Predictable crying episodes. 2  A baby who has colic often cries about the same time every day, usually in the late afternoon or evening. 3  Colic episodes may last from a few minutes to three hours or more on any given day.