Jimmy Fallon -- I Nearly Ripped Off My Finger (PHOTO)

Jimmy Fallon and his single working hand are looking for a little sympathy -- he just gave us a first look at the injury, and an explanation for what happened early Friday morning.

Jimmy's left hand is heavily bandaged and elevated in the pic he posted from his hospital bed. He says his ring got caught on the edge of a table when he tripped and fell at home -- and he damn near ripped a finger clean off his hand.

At least the 'Tonight Show' host can still count on his right hand for important things.