Dupytren's disease (or Dupytren's contracture) is a thickening of the layer of tissue in the palm or fingers which lies underneath the skin (known as the fascia). As the tissue becomes thick it can contract pulling the fingers down into a flexed position.
The cause of Dupytren's disease is not known.
Dupytren's disease can affect any or all of the fingers and the thumb but it most commonly it effects the ring finger followed by the little finger and the middle, index and thumb less commonly.