For about a month i have woke up with my finger swollen and hard to bend. i did not injure it at all?

Trigger finger: Trigger fingers are swollen and difficult to bend in the am. They often get better as the day goes on. They can lock and click, a cortisone injection may cure the problem. http://www.centraljerseyhand.com/trigger-finger.html.

Many possibilities: There is a long list of diagnosis possible for atraumatic finger swelling and stiffness. Most common is a trigger finger or stenosing tenosynovitis, but other possibilities in the long list include infection, inflammatory conditions such as gout or ra, aggravation of underlying arthritis... Only way to find out for sure is evaluation by a qualified medical provider -.