I have small, skin covered, painless, nodules on several of the first joint (closest to the fingetnail) of my fingers. What concerns should I have?

Heberden's nodes. Bony bumps on the finger joint closest to the fingernail are called heberden's nodes. Bony bumps on the middle joint of the finger are known as bouchard's nodes. Bony bumps are also common at the base of the thumb.