Condition guide
Baker's Cyst - Overview
A fluid-filled sac behind the knee that causes swelling and discomfort, often due to underlying joint issues like arthritis.
Symptoms
- Swelling behind the knee
- Pain when bending or straightening the knee
- Stiffness or tightness in the knee
- Increased swelling after activity
- Tightness in the calf muscle
Causes & Risk Factors
- Knee arthritis (e.g., osteoarthritis, rheumatoid arthritis)
- Meniscus tears
- Joint effusion (fluid buildup)
- Injury or trauma
- Chronic inflammation
Diagnosis
- Physical examination of the popliteal area
- Ultrasound or MRI
- Aspiration to rule out other fluid types
Effective Treatment Options
- Treat underlying joint condition
- NSAIDs for inflammation
- Aspiration of the cyst
- Corticosteroid injections
- Surgical removal in severe or recurrent cases
Frequently Asked Questions
Can a Baker's cyst burst?
Yes, and it may cause sudden pain and swelling in the calf, similar to a blood clot.
Do Baker's cysts always need surgery?
No, many resolve with conservative treatment targeting the underlying joint issue.
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