๐งพ What Is a Baker’s Cyst?
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A non-cancerous, fluid-filled lump that appears behind the knee.
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Often feels like a tightness or bulge, especially when the knee is extended or during activity.
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May be painless or cause aching, stiffness, or pressure.
Causes
A Baker’s cyst usually develops due to:
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Knee joint inflammation (like arthritis or rheumatoid arthritis)
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Meniscus tears
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Overuse or injury
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Fluid leaking from the knee joint into the back of the knee
๐ Symptoms
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Swelling behind the knee
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Stiffness or limited knee movement
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Pain that worsens with standing, bending, or activity
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Sometimes the cyst can burst, causing sharp pain and swelling in the calf (can mimic a blood clot)
๐ฉป Diagnosis
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Physical exam
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Ultrasound or MRI to confirm size and rule out other issues (like a blood clot)
๐ Treatment
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Often no treatment needed if mild
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R.I.C.E. (Rest, Ice, Compression, Elevation)
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Anti-inflammatory medication (like ibuprofen)
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Draining the fluid (aspiration) or steroid injections if painful or large
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Treating the underlying knee problem is key
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In rare cases, surgery is done if the cyst is persistent or causing major issues
๐จ See a Doctor If:
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You have severe pain, redness, or swelling in your leg
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The lump grows quickly
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It interferes with movement
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You suspect it has ruptured
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