This could be a Dupuytren's contracture or trigger thumb.
Try:
Hot water compression and massage.
Intralesional steroid injection offer great help.
Hand exercises to keep joints moving.
Health Tips
If you are diabetic then get diabetes under control.
Can Trigger thumb be treated?
Kindly revert back.
I have all reports ready.
Regards
Nitin Godbole
Pune
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