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Symptom Checker
Step 4: Read and complete the decision guide to learn more about your symptoms.
Persistent Knee Swelling
Okay! We hope your knee swelling gets better soon and that this guide has been helpful.
Remember:
See your doctor; if serious conditions, including infection, could be present and treatment should be started right away.
Knee swelling can be related to many different conditions, some of which are related to inflammation (such as gout or rheumatoid arthritis), others due to a mechanical problem in the knee (such as torn ligament or injured cartilage), and still others that are less inflamed but still arthritic (such as osteoarthritis.
Knee swelling is most commonly due to conditions that are not serious--in fact, swelling is often present even in people who do not realize it--so if you notice knee swelling, don't panic! But do contact your health care provider.
Diseases and conditions
gout
IBD-associated arthritis
Lyme disease
meniscal tear
osteoarthritis
pseudogout
psoriatic arthritis
reactive arthritis
rheumatoid arthritis
septic arthritis
Test and procedures
tapping the joint for synovial fluid analysis
MRI
CT scan
arthroscopy
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