URMC / Encyclopedia / Content Search Encyclopedia Common Childhood Illnesses and Concerns As a child grows from infancy through adolescence, it is important to promote good health. Click on the links below to learn more about common childhood illnesses and concerns. Allergies Respiratory Conditions Infections Skin Conditions Eye Conditions Ear, Nose, and Throat Conditions Gastrointestinal Conditions Genitals and Urinary Conditions Neurological Conditions Orthopedic Conditions Mental Health Conditions Safety and Injury Prevention