Endomyocardial Fibrosis: Causes, Symptoms, and Treatment
Medically reviewed by Harsha Moole, MD, Internal Medicine. Last reviewed: October 2, 2026.
What kind of doctor treats Endomyocardial Fibrosis?
A cardiologist usually treats endomyocardial fibrosis. Because the disease is rare, care often happens at a medical center with experience in heart muscle diseases. A primary care doctor can help coordinate testing and referrals. A direct primary care or concierge doctor can be a first stop for an evaluation and can refer you to a specialist when needed.
What it is
Endomyocardial fibrosis is a rare heart problem. Tough, scar-like tissue builds up on the endocardium, the smooth inner lining of the heart chambers. As this tissue thickens, the heart walls become stiff and cannot fill with blood well, so less blood moves through the body. Doctors sometimes group it with restrictive cardiomyopathy, meaning the heart muscle becomes stiff and does not relax normally.
Symptoms
Symptoms often come on slowly, sometimes over years. Many people first notice trouble breathing, especially with activity or lying down, along with swelling in the legs, ankles, or belly from fluid buildup. Other signs include fatigue, an irregular or racing heartbeat, and sometimes chest discomfort. In advanced cases, people may lose weight and feel weak.
Causes and who gets it
Doctors do not fully understand what causes endomyocardial fibrosis. It is seen most often in tropical parts of Africa, and also in parts of South America and Asia. Some researchers think infections, diet, or the body's own defense system may play a role, but no single cause has been proven. It can affect children and adults, is very rare in the United States and Europe, but can appear in people who once lived in or visited tropical regions.
How doctors diagnose it
Diagnosis usually starts with a physical exam and questions about symptoms and travel history. Doctors often use an echocardiogram, an ultrasound that shows thickened heart walls and how well the heart fills. Other tests may include an electrocardiogram, an MRI scan, blood tests, and sometimes a biopsy of heart tissue.
Treatment
Treatment depends on how advanced the disease is. Medicines such as diuretics can help the heart work better and reduce fluid buildup. In severe cases, surgery can remove scar tissue or repair or replace a damaged heart valve, and very advanced disease may be considered for a heart transplant. Early treatment usually leads to better day-to-day function.
When to see a doctor
Anyone with ongoing shortness of breath, swelling in the legs or belly, or a racing or irregular heartbeat should see a doctor. These symptoms can come from many conditions, and only testing can find the cause. Seek urgent care for severe breathing trouble, fainting, or chest pain.
How a direct primary care or concierge doctor fits in
A direct primary care doctor charges a flat monthly fee instead of billing insurance, while a concierge doctor usually charges more and often works alongside insurance. Either can be a helpful partner for a rare condition like this, offering longer visits to talk through symptoms and test results. They can manage routine care, order initial tests, and refer you to a cardiologist when specialized care is needed.
Common questions
Is endomyocardial fibrosis the same as a heart attack?
No. A heart attack happens when blood flow to part of the heart is suddenly blocked. Endomyocardial fibrosis is a slow buildup of scar tissue inside the heart over a much longer time.
Can it be cured?
There is no simple cure. Medicines can ease symptoms, and surgery can help some people, but results differ from person to person.
Is it contagious?
No. You cannot catch endomyocardial fibrosis from another person. Even so, infections may play a role in how it starts in some people.
Sources
- NIH Genetic and Rare Diseases Information Center - Endomyocardial fibrosis
- MedlinePlus - Cardiomyopathy
Medical Disclaimer
This content is for general educational and informational purposes only and is not medical advice. It is not a substitute for professional medical advice, diagnosis, or treatment, and reading it does not create a doctor-patient relationship. Always seek the advice of your physician or another qualified health provider with any questions about a medical condition, and never disregard or delay seeking professional advice because of something you read here. If you think you may have a medical emergency, call 911 (or your local emergency number) immediately.
