Are not unbent 4 j and 5 j fingers

[Foma]

On the right arm or hand are not unbent 4 j and 5 j fingers (basically after a load). What is it can be? P. S. It is interesting, that fingers tezhe, but on the left arm or hand ache a bit.

[The first doctor]

The given problem can be caused both a pathology of joints, and a pathology of tendons. To tell or say something concrete it is possible only at personal survey.