To ensure the answer was accurate I conferred with Dr. Carol Mynatt, Chiropractor.
She said traction (pulling on the joint) was no problem, however folding and pushing the joints causes inflammation. Neither method though has been shown to cause arthritis.
pros and cons to crackin knuckles??
i do it to every single one of the joints in my hands..
..ppl keep saying it causes arthritis..
but it doesn't.. right? ..hasn't been provin.. from CiCi Chanthavong via Facebook