I've a hard lump/cyst on my center finger, palm side by the main joint. The knuckle is swollen and crooked, more as years go by. There is no pain, and it flexes fine, just looking worse over time. What can I do? I'm 57 now. It's possible that the finger was damaged in a door years ago. After about the first year when I started noticing the downward crookedness, I tried to bend it back into place to see if it would go, and it cracked loudly and went back! But it didn't last, so I don't know if this is all caused by the growth or partially from other damage.
There are all kinds of nodules that can form on the finger joints in osteoarthritis and in rheumatoid arthritis. There are rheumatoid nodules, Heberden's and Bouchard's nodules that show up on finger joints. There can also be cysts that form on tendons due to chronic tendonitis. You really need to see an orthopedic doctor. He/she will most likely x-ray your hand and perhaps do an MRI. Your doctor could order these tests done, along with an arthritis panel (blood test ), and then refer you to an ortho or rheumy depending on what the tests show.
You really should check this out with a doctor. You don't want to end up with a crippled hand if you can avoid it, right?
By the way, welcome to our community. I hope you will share your experience with us when you get a diagnosis. Hope you get some help soon!
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