Situs Inversus: Causes, Symptoms, and Treatment
Medically reviewed by Harsha Moole, MD, Internal Medicine. Last reviewed: October 23, 2026.
What kind of doctor treats Situs Inversus?
A cardiologist (a heart doctor) often helps people with situs inversus. A geneticist (a doctor who studies inherited conditions) may help too. A primary care doctor can look for related problems and arrange the right tests. 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 is situs inversus?
Situs inversus is also called situs inversus totalis. It means the internal organs are a mirror image of the normal layout. It is present from birth. For example, the heart is on the right side of the body instead of the left. It can occur alone, with no other problems, or as part of a syndrome with other defects.
Heterotaxy syndrome is a different problem. In heterotaxy, the heart, liver, intestines, or spleen may be abnormal or in the wrong place. Dextroposition is also different. It means the heart is pushed to the right. Disease of the lungs, the lining around the lungs, or the diaphragm usually causes this.
Symptoms
Situs inversus on its own does not typically cause health problems. Most affected people live a normal life without symptoms or disability.
Other conditions can come with it. Congenital heart defects are heart problems present from birth. They occur in about 5 to 10 percent of affected people.
Primary ciliary dyskinesia (PCD) is another. In PCD, tiny finger-like parts called cilia do not work well. This leads to repeated airway infections. About 40 percent of people with PCD have situs inversus totalis. Doctors often call this combination Kartagener syndrome.
Causes and who gets it
It forms early in development before birth. This is when the left and right sides of the body are set. The cause and genetics are complex. Familial cases have been reported, which means it has sometimes run in families.
NORD says dextrocardia with situs inversus is autosomal recessive. This means a person must get the same changed gene from each parent. It affects males and females in equal numbers.
How doctors diagnose it
In dextrocardia with situs inversus, the tip of the heart points to the right side of the chest. The liver and spleen are also reversed. NORD says an ECG, which records the heart's electrical waves, is the diagnostic measure of choice.
Treatment
Treatment is symptomatic and supportive when needed. This means care focuses on any symptoms that appear. In most cases, people can live a normal life without symptoms or discomfort. If more serious heart problems are present, the outlook and treatment vary. Genetic counseling may help affected families.
When to see a doctor
Repeated lung or sinus infections and ongoing breathing trouble can be signs of Kartagener syndrome, which includes situs inversus. Tell your doctor if you have them.
Call 911 or go to the emergency room if you have chest pain lasting two minutes or more, loss of consciousness, or severe trouble breathing.
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. These doctors can review your symptoms and family history. They can also help coordinate heart or genetic specialists and follow your long-term health.
Common questions
Is situs inversus dangerous?
Situs inversus on its own does not typically cause health problems. Problems can come from other conditions that go with it. One example is heart defects. They occur in about 5 to 10 percent of affected people.
Can people with situs inversus live a normal life?
Yes, in most cases. If more serious heart problems are present, the outlook and treatment vary.
Is situs inversus inherited?
Sometimes. Familial cases have been reported, but the cause and genetics are complex. Genetic counseling may help affected families.
What is Kartagener syndrome?
Kartagener syndrome is the name often used for primary ciliary dyskinesia plus situs inversus totalis. It can include difficulty breathing, repeated respiratory infections, and sinus infections.
Sources
- NIH Genetic and Rare Diseases Information Center - Situs inversus
- National Organization for Rare Disorders (NORD) - Dextrocardia with Situs Inversus
- MedlinePlus Genetics - Primary ciliary dyskinesia
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.
