If one or more fingers become crooked, a Dupuytren's contracture may be the cause, and it is a common finding in older people. It generally develops without any obvious cause - initially in the hand - and presents as a thickening and contracting of a sheet of connective tissue in the palm of the hand. As a result, the tissue required to extend the finger is missing, causing the finger to become visibly crooked.
In the early stages, firm nodes generally develop on the flat of the palm, although they initially do not interfere with the mobility of the fingers. Over time, the fingers become visibly more crooked and the hand's functionality becomes impaired. In advanced cases, the nerves of the fingers can also be affected.