Hypospadias is a problem where the opening of the urethra is not at the tip of the penis. Learn more about this condition, including what causes it, who is at risk, what the symptoms are, and how it's diagnosed and treated.

Whooping cough (pertussis) is a contagious illness. It causes intense fits (paroxysms) of coughing. It mainly affects babies and young children.

Mumps is a very contagious viral illness that infects the pair of salivary glands in front of the ears. Cases of mumps in the U.S. happen much less often since the mumps vaccine has been used.

Hemolytic disease of the newborn (HDN) is a blood problem in newborns. It occurs when your baby's red blood cells break down at a fast rate. Read on to learn more.

Meningococcal infections are not common, but they can be fatal. Learn about the causes in children, symptoms, diagnosis, treatment, and more.

Meningitis is most often caused by a bacterial or viral infection that moves into the cerebral spinal fluid (CSF).

Detailed information on vision and hearing in newborns

A detailed look at Turner syndrome, a genetic disorder that occurs in girls.

Human parainfluenza viruses (HPIVs) are a group of viruses that cause different types of respiratory infections. They are more common in children and babies. But they can occur in people of any age, especially those with a weak immune system.

Detailed information on HIV home care for your child