Mitral valve prolapse
Mitral valve prolapse is a common heart condition where the valve between the heart's left chambers doesn't close properly, sometimes bulging backward. While often harmless, it can occasionally lead to blood leaking backward into the atrium.
Overview
Mitral valve prolapse is a common heart condition where the valve between the heart's left chambers doesn't close properly, sometimes bulging backward. While often harmless, it can occasionally lead to blood leaking backward into the atrium.
Understand this condition
The mitral valve acts as a one-way door between the heart's upper and lower chambers. In this condition, the door flaps are too large or stretchy, causing them to buckle backward. This can sometimes allow small amounts of blood to leak the wrong way.
Why it happens
The primary cause is often a change in the tissue of the valve leaflets, making them unusually flexible. While usually stable for life, the valve may gradually weaken or the support cords may stretch over many years. This progression can eventually lead to a significant backflow of blood that requires medical intervention.
Real-world scenarios
- •This often appears as a clicking sound heard during a routine physical exam.
- •People may notice a fluttering sensation in their chest when lying down.
- •This often appears as mild chest discomfort that comes and goes quickly.
- •People may notice they get winded more easily during uphill walks.
Common vs serious explanations
- •Anxious feelings causing awareness of heartbeat
- •Mild caffeine-induced heart palpitations
- •Routine physical exertion during exercise
- •Normal variations in heart rhythm during stress
- Severe mitral valve regurgitation causing fluid in the lungs
- Infective endocarditis causing a bacterial infection of the valve
- Atrial fibrillation increasing the risk of blood clots or stroke
- Congestive heart failure due to long-term valve leakage
Symptoms
Click any symptom to analyzeNo symptoms mapped yet.
Causes
- •Genetic predisposition
- •Connective tissue disorders (e.g., Marfan syndrome)
- •Abnormal thickening of mitral valve leaflets
- •Stretching of the chordae tendineae (heart strings)
Risk factors
- •Family history of the condition
- •Scoliosis or other skeletal issues
- •Age (tends to develop in young adults)
- •Connective tissue diseases
How it progresses
3 stages- OnsetSymptoms appear, often triggered by a known cause.Often missed
- Active phaseSymptoms peak; self-care or short treatment usually helps.
- ResolutionSymptoms ease over days to weeks with proper care.
How it's diagnosed
- •Echocardiogram (ultrasound)
- •Physical exam with stethoscope
- •Electrocardiogram (ECG)
- •Exercise stress test
Treatment options
General educational information only — no dosage advice. Always follow guidance from a qualified clinician.
- •Monitoring with regular check-ups
- •Beta-blockers for palpitations
- •Blood thinners if blood clots are a risk
- •Surgical valve repair or replacement (rarely)
- •Regular cardiovascular exercise
- •Limiting caffeine and stimulants
- •Staying hydrated
- •Routine dental hygiene to prevent infection
- •Regular follow-up with a cardiologist
Complications
- •Reduced quality of life
- •Worsening symptoms over time
- •Recurrence of mitral valve prolapse
Prevention
- •Maintain a healthy lifestyle
- •See a clinician for routine check-ups
When to seek help
- •Symptoms persist beyond a few days
- •Symptoms interfere with daily activities
- •New or worsening symptoms appear
- •Concerning changes related to mitral valve prolapse
- Fainting or near-fainting spells
- Severe, sudden shortness of breath
- Rapid or irregular heartbeat at rest
- Chest pain that does not go away
In any emergency, call your local emergency number or go to the nearest emergency department.
Real-world questions
- ›Can Mitral valve prolapse cause headaches?
- ›Is Mitral valve prolapse reversible?
- ›How quickly does Mitral valve prolapse progress?
- ›Is Mitral valve prolapse hereditary?
- ›Can Mitral valve prolapse be prevented?
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Frequently asked questions
Possible causes of Mitral valve prolapse include Genetic predisposition, Connective tissue disorders (e.g., Marfan syndrome), Abnormal thickening of mitral valve leaflets, Stretching of the chordae tendineae (heart strings).
Mitral valve prolapse is generally mild, but severity can vary. Seek care if symptoms are severe or persistent.
Duration varies between individuals. Many cases improve with appropriate care, while others may persist longer and require ongoing management.
Some milder cases may improve with rest and self-care. If symptoms persist or worsen, consult a healthcare professional.
Consider seeing a clinician if symptoms are severe, persistent, worsening, or if you have any concerns related to general.
Sources
Information based on general medical references such as:
Last reviewed: May 2026