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
Potassium Supplements May Help Some Heart Failure Patients
Study finds they seem to improve survival for people taking 'water pill' diuretics

Heart Failure Symptoms

What Are Heart Failure Symptoms?

If you have heart failure, you may not have any symptoms, or the symptoms may range from 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 rest or when lying flat in bed. Lung congestion can also cause a dry, hacking cough or wheezing.
  • Fluid and water retention. A weak heart pumps less blood to your kidneys and causes fluid and water retention, resulting in swollen ankles, legs, and abdomen (called edema) and weight gain. This can also cause an increased need to urinate during the night as your body attempts to get rid of this excess fluid. Bloating in your stomach may cause a loss of appetite or nausea.
  • Dizziness, fatigue, and weakness. Less blood to your major organs and muscles makes you feel tired and weak. Less blood to the brain can cause dizziness or confusion.
  • Rapid or irregular heartbeats. The heart beats faster to pump enough blood to the body. This can cause a fast or irregular heartbeat.

Today on WebMD

Compressed heart
Article
Salt Shockers
Slideshow
 
Inside A Heart Attack
Slideshow
lowering blood pressure
SLIDESHOW
 

Mechanical Heart
Article
Omega 3 Overview Slideshow
Slideshow
 
Atrial Fibrillation Guide
Slideshow
Simple Steps to Lower Cholesterol
Slideshow
 

Compressed heart
Article
FAQ Heart Failure
Article
 
Cholesterol Confusion
Health Check
Resolved To Quit Smoking
Slideshow
 

WebMD Special Sections