Usu osteoarthritis: Joints pop when the gas in the joint fluid is pulled out of solution by negative pressure. This can be seen in a normal joint but is seen more often in injured joints and in joints with osteoarthritis. Stiffness is usually associated with arthritis.
Answered 4/6/2013
5.2k views
3 doctors weighed in across 2 answers
3 doctors weighed in across 2 answers
90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more.
Ask your question