Symptoms

In some people, an enlarged heart causes no signs or symptoms. Others may have these signs and symptoms:

• Shortness of breath
• Abnormal heart rhythm (arrhythmia)
• Swelling (edema)

When to see a doctor

An enlarged heart is easier to treat when it's detected early, so talk to your doctor if you have concerns about your heart.

Seek emergency medical care if you have any of these signs and symptoms, which may mean you're having a heart attack:

• Chest pain
• Discomfort in other areas of the upper body, including one or both arms, the back, neck, jaw, or stomach
• Severe shortness of breath
• Fainting

If you have new signs or symptoms that might be related to your heart, make an appointment to see your doctor.