The four stages of heart failure include:
Stage A (at risk for heart failure): You have no symptoms or heart disease, but you have risk factors like obesity, diabetes, a family history of cardiomyopathy, and others.
Stage B (pre-heart failure): You do not have current or previous symptoms of heart failure, but you do have either structural heart disease, increased filling pressures in the heart, or other risk factors.
Stage C (symptomatic heart failure): You have current or previous symptoms of heart failure.
Stage D (advanced heart failure): You have symptoms of heart failure that interfere with your daily life functions, or you have repeated hospitalizations due to your symptoms.