As u said its by birth..!! That means its congrnital deformity.., and to be clear with congenital deformity is difficult to get normal..
My opinion for u is u plzz dont try to bend ur hand as it may lead to fracture.. u would rather consult an orthopedician.. he can rule out better.!! Mobilizations or may be surgery..!! Take care.
Answered2017-11-02 04:48:47
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