Swollen finger joints . no pain. can cracking my knuckles be the reason? if not then what?thanks in advance .

Multiple causes: Cracking your knuckles usually does not cause any swelling. Swelling can be from fluid retention from certain diets and medications. Swelling in for your joints could also represent inflammatory conditions such as rheumatoid arthritis or another inflammatory arthritic condition. Please see your physician for a thorough examination.