Posted: Mar 15, 2010 10:15 am
Osteoarthritis can certainly cause the knuckles to enlarge (Google "Bouchards Nodes and Heberdens Nodes). There doesn't have to be any pain involved.
Lifeboat for the rational mind :D
http://www.rationalskepticism.org/
http://www.rationalskepticism.org/viewtopic.php?p=55240#p55240