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Psoriatic arthritis most often causes swelling and joint pain in the fingers and toes. Aortic stenosis Aortic stenosis is a condition of the heart causing shortness of breath, dizziness, or chest pain.
A. A. Cracking joints and popping knuckles are an interesting and poorly understood phenomenon. There are many theories as to why joints crack or pop, but the exact cause is simply not known. Painless cracking of joints is -- as a rule -- not harmful.nuckle cracking has not been shown to be harmful or beneficial. More specifically, knuckle cracking does not cause arthritis. Joint cracking can result from a negative pressure pulling nitrogen gas temporarily into the joint, such as when knuckles are cracked..