Health Library

Infant Sleep

If you know anything about your baby's sleeping pattern, it's probably that it doesn't coincide with yours. But learning more about your baby's nighttime and daytime sleep needs can help you recognize what's normal, and what's not.

Infectious Diseases

Detailed information on infectious diseases in children

Infectious Mononucleosis (Mono) in Teens and Young Adults

Infectious mononucleosis is a contagious illness. It’s common in teens and young adults.

Inflammatory and Infectious Digestive Disorders

Detailed information on digestive inflammatory and infectious disorders in children

Inflammatory and Infectious Musculoskeletal Disorders

Detailed information on the most common types of inflammatory and infectious disorders in children

Inflammatory and Infectious Neurological Disorders

Detailed information on the most common inflammatory and infectious disorders in children

Influenza (Flu) in Children

Influenza (flu) is a very contagious viral infection that affects the air passages of the lungs. Learn about the causes, symptoms, diagnosis, treatment, and more.

Inguinal and Umbilical Hernias in Children

A hernia occurs when a part of the intestine pushes through a weak spot in the belly (abdominal) muscles. The hernia creates a soft lump or bulge under the skin.

Inguinal Hernia in Children

A hernia occurs when a part of the intestine pushes through a weakness in the belly (abdominal) muscles. A hernia in the groin area is called an inguinal hernia.

Injuries to a Child's Tooth

The injury may be to a primary tooth or a permanent tooth. A tooth can be cracked, chipped, or totally detached from its socket.

Insect Bites and Children

Detailed information on insect bites, including fleas, mites, chiggers, and ticks

Insect Stings and Allergic Reactions in Children

For most children, the reaction to a sting is brief, with redness and swelling followed by pain and itching. Others may have an allergic reaction that is life-threatening. Read on for details.