Skip to content My WebMD Sign In, Sign Up  Heart Failure Health
Center  Heart Failure  Heart failure can be caused by coronary
artery disease, heart attack, cardiomyopathy, and high blood
pressure. Heart failure treatment includes doctor-prescribed
exercise, dietary changes, medicines, and rarely surgery.
Latest Headlines Causes of Sudden Cardiac Arrest: Athletes and
Others Why do some people have sudden cardiac arrest? What
should you do if it happens? Find out from WebMD.  Health
Insurance in Your State   From WebMD  Heart Failure Symptoms
What Are Heart Failure Symptoms?  You may not have any heart
failure symptoms, or the symptoms may be mild to severe.
Symptoms can be constant or can come and go. Heart failure
symptoms are related to the changes that occur to your heart and
body, and the severity depends on how weak your heart is. The
symptoms can include:    • Congested lungs. A weak heart causes
fluid to back up in the lungs. This can cause shortness of
breath with exercise or difficulty breathing at