I injured my wrist at work about a month and a half ago.  A box fell off a top shelf hitting me on the left side of my right wrist.  Now I have a hard lump in that spot.  I dont have to much pain, unless I try to use my thumb a certain way.  I didnt have it looked at, but am now wondering if i should.
Welcome to Chat Doctor, short answer: you are probably having a ganglion in your right wrist detailed answer: most of the ganglion needs no treatment. You will experience some pain on rotation. The best treatment for it is giving a constant pressure in the affected area. Have rest in the affected limb and putting a big book above the ganglion (swelling) .if the ganglion becomes infected you may need surgical removal of the cyst. Hope this explains with regards Chat Doctor.