Colds and flu differ in a few key ways. Knowing more about these infections may make it easier to prevent them. And if your child does get sick, you can help keep symptoms from becoming worse.

Heart failure (CHF) is a condition in which the heart does not pump as well as it should. When this happens, fluid can build up in the lungs or body tissues (congestion). HF can cause lung problems, organ failure, and other serious problems in the body. Your child's healthcare provider will evaluate your child's heart and discuss treatment options with you.

An AV canal defect is a large hole in the center of the heart. This heart defect can usually be treated with surgery.

A ventricular septal defect is a hole between the two lower heart chambers (ventricles). This is a heart defect a person is born with (congenital). It can lead to heart failure.

ASD repair can be done with either cardiac catheterization or with open heart surgery. Your child's cardiologist or surgeon will discuss the best treatment for your child with you.

An atrial septal defect is a hole in the dividing wall (atrial septum) between the heart's 2 upper chambers (atria). It may close on its own as your child grows. In some cases, surgical repair is needed.

Aortic stenosis means that the aortic valve doesn't open all the way. This affects how much blood can flow from the heart to the rest of the body. Treatment includes balloon valvuloplasty or surgery to repair or replace the valve.

Aortic stenosis is when the aortic valve doesn't open all the way. reducing blood flow from the heart out to the body. It is usually a congenital heart defect.

Pulmonary stenosis occurs when the pulmonary valve doesn't open all the way and blood flow to the lungs is blocked.

Learn how the skeleton bones develop from infants to teens.