What is the size and shape of the lump?
Is is painful, red and tender?
How old are you?
Are you diabetic?
This can be following;
1) A ganglion; this sometimes can be slightly painful due to associated tendinitis (tendon inflammation) or tenosynovitis (tendon sheath inflammation); for which you have a history of pain. This needs wrist brace, anti-inflammatory analgesics like Motrin, local analgesic patch/ointment/spray and rest to the wrist.
2) Bursitis; These are soft tissue structures to provide glistening surfaces for the smooth movements of the tendons. Treatment is as above.
These are the resources where you can read about them;
Please feel free for your follow up questions.
would these two things not show up on an xray? Also my wrist sometimes feels like it has been clicked out of joint although there is no clicking noise is this a symptom of this condition? Would these be the symptoms of bone cancer? Does bone cancer always show up on an xray?
Both of these would not show up in the x-ray, as these are soft tissue affections. Bone cancer would be seen in the x-ray. These are unlikely to be symptoms of bone cancer. Please do not worry about it.
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