Heart failure is a condition that develops when the heart doesn’t pump enough blood for the body’s needs. This can happen if the heart can’t fill up with enough blood. It can also happen when the heart is too weak to pump properly. The term "heart failure" does not mean that the heart has stopped. However, heart failure is a serious condition that needs medical care. Heart failure can develop suddenly (the acute kind) as your heart gets weaker (the chronic kind). It can affect one or both sides of the heart. Left-sided and right-sided heart failure may have different causes. Most often, heart failure is caused by another medical condition that damages the heart. This includes coronary heart disease, heart inflammation, high blood pressure, cardiomyopathy, or an irregular heartbeat. Heart failure may not cause symptoms right away. But eventually, one may feel tired and short of breath and notice fluid buildup in the lower body, around the stomach, or neck. Heart failure can damage the liver or kidneys. Other complications include pulmonary hypertension or other heart conditions, such as an irregular heartbeat, heart valve disease, and sudden cardiac arrest. Currently, heart failure is a serious condition that has no cure. However, treatment such as healthy lifestyle changes, medicines, some devices and procedures can help many people have a higher quality of life.