Library
MedlinePlus Health Topics
disease topic
Patient-friendly

High Cholesterol in Children and Teens

Source: MedlinePlus Health Topics, U.S. National Library of Medicine

Last synced 8/14/2026Status: primary verified

What is cholesterol? Cholesterol is a waxy, fat-like substance that's found in all the cells in the body. The liver makes cholesterol, and it is also in some foods, such as meat and dairy products. The body needs some cholesterol to work properly. But if your child or teen has high cholesterol (too much cholesterol in the blood), it can stick to the walls of their arteries and narrow or even block the arteries. This can put your child or teen at risk of coronary artery disease and other heart diseases . What causes high cholesterol in children and teens? Three main factors contribute to high cholesterol in children and teens: An unhealthy diet, especially one that is high in saturated fats A family history of high cholesterol, especially when one or both parents have high cholesterol Having obesity Some diseases, such as diabetes , kidney disease , and certain thyroid diseases , can also cause high cholesterol in children and teens. What are the symptoms of high cholesterol in children and teens? There are usually no signs or symptoms that your child or teen has high cholesterol. How do I know if my child or teen has high cholesterol? There is a blood test to measure cholesterol levels. The test gives information about: Total cholesterol . This is a measure of the total amount of cholesterol in your blood. It includes both low-density lipoprotein ( LDL ) cholesterol and high-density lipoprotein ( HDL ) cholesterol. LDL cholesterol. LDL is often called "bad" cholesterol because it is the main source of cholesterol buildup and blockage in the arteries. HDL cholesterol. HDL is often called "good" cholesterol because it helps remove cholesterol from your arteries. Non-HDL. This number is your total cholesterol minus your HDL. Your non-HDL includes LDL and other types of cholesterol such as VLDL (very-low-density lipoprotein). Triglycerides . This is another type of fat in your blood that can raise the risk of heart disease. For anyone aged 19 or younger, the healthy lev

Educational only
This information is for general education and is not medical advice. Always talk to a licensed U.S. clinician about your situation, medications, or treatment decisions.