There are many online sources where a person can find a list of heart diseases including WebMD, MedicineNet and the World Heart Federation. Some of the many heart diseases mentioned at these online sources include angina, congenital heart disease, heart valve disorders, atrial fibrillation, cardiomegaly and cardiomyopathy.
Heart valve disease can include valvular stenosis and valve insufficiency. Valvular stenosis involves the narrowing of the valves located between the heart chambers, while valve insufficiency, which is also referred to as leaky valve, is a condition in which blood flows back into the atrium because the valves do not close properly, according to WebMD. Similarly, there are different types of congenital heart problems like a hole in the heart and aortic valve stenosis.