Hypercholesterolemia is a condition in which the level of cholesterol in your blood is high. Cholesterol is a waxy substance that is present in many of your body tissues.
Cholesterol is also present in certain foods, such as egg yolk, liver, and shellfish.
However, there is usually more LDL than HDL cholesterol present in your blood. A total cholesterol level of 200 or less is considered good. A level between 200 and 239 is borderline high. A reading of 240 or more is high and indicates you have hypercholesterolemia. Some families have an inherited tendency towards high blood cholesterol.