Early Signs and Symptoms of Heart Failure
January 13, 2026
What Is Heart Failure?
Heart failure means your heart is unable to keep up with your body’s needs. Heart failure is not a disease – it is what happens when there is damage or stress on the heart due to other health conditions. Many people can live well with heart failure when it is caught early and follow a care plan. It is important to catch symptoms and diagnose heart failure early. If heart failure becomes a chronic condition, it is often called congestive heart failure (CHF).
Why Early Signs Matter
The earlier heart failure is found, the easier it is to manage. Knowing the warning signs helps patients get care sooner and may help prevent their symptoms from getting worse.
Common Early Symptoms of Heart Failure
Here are the most common early signs to watch for:
Shortness of Breath: You may feel out of breath during simple activities like walking, climbing stairs, or even lying flat. This happens when fluid builds up in the lungs.
Tiredness or Low Energy: You may feel worn out even after small tasks. When the heart cannot pump enough blood, muscles do not get the oxygen they need.
Swelling in Your Feet, Legs, or Ankles: This swelling is called edema. It happens when extra fluid collects in the body because the heart is not pumping well.
Fast Weight Gain: Gaining 2 to 3 pounds in a day or 5 pounds in a week may mean the body is holding onto too much fluid. This is an early warning sign that heart failure symptoms are getting worse.
Coughing or Wheezing: A cough that doesn’t go away can be a sign of fluid in the lungs, especially when it is worse at night or when lying down. If you use an inhaler and it seems to stop working, this could also be a sign of fluid in the lungs.
Trouble Sleeping or Waking Up Due to Shortness of Breath: If you are used to sleeping flat and suddenly need to use extra pillows or sleep sitting up to breathe comfortably.
Feeling Full Quickly: Some people lose their appetite or feel full after eating only a small meal. This happens when fluid builds up around the stomach.
When to Call Your Doctor
Call your doctor if you notice any new symptoms or if your current symptoms get worse. Fast care can help prevent a heart failure flare-up.
How to Stay Ahead of Heart Failure
Weigh yourself every day
Follow a low-salt diet
Take your medicines as prescribed
Keep your follow-up appointments
Tell your doctor about any changes
Early signs of heart failure can be easy to miss but knowing what to look for makes a big difference. If you or a loved one notices these symptoms, reach out to your doctor. Early care helps you stay healthier and feel better.
