I have reoccurring hard, painful lumps under my skin on a few fingers and toes for the last year. They are not itchy and about 0.5-1 CM in diameter.?

It could just be. scar or fibrous tissue, cyst,viral infection etc. Your primary Dr or Dermatologist can give you a definitive diagnosis. Best wishes! http://www.webmd.com/skin-problems-and-treatments/guide/cysts-lumps-bumps.