Cyanotic Heart Disease is a disease that causes the skin color to turn blue. This heart disease is generic and is a heart defect usually found in infants at birth or shortly after birth.
This is a congenial heart disease that can either prevent enough blood flow to the lungs that keep the oxygen from getting into the blood or allow blood to get to the lungs, but the oxygenated blood is then kept from being pumped into the body's regular circulation. Low oxygen levels in the blood can lead to organ failure and even death.

Some of these types of heart defects that cause cyanotic heart disease are:

The heart develops abnormally before the person is born, but most of the time the  factors that causes cyanotic heart disease is unknown. But there are some known factors listed below: