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Deborah, Nurse (RN)
Category: Health
Satisfied Customers: 3217
Experience:  Registered NP - Multispeciality
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Why do my shoulder joints always pop or crack everytime I ...

Customer Question

Why do my shoulder joints always pop or crack everytime I raise my arms over my head?
Submitted: 10 years ago.
Category: Health
Expert:  Deborah replied 10 years ago.

Joints can make different noises--some are serious and some are not.

By pushing or pulling a joint in a certain way, an air bubble can suddenly appear in the joint with a "pop." Once the bubble is there the joint cannot be popped again until the air has been reabsorbed.

Some joints crack as the ligaments and tendons that pass over them slide past bumps on the bones. Individuals who "crack their neck" make noise in this way.

Other joints lock up intermittently--often with a loud pop--because something gets caught in between the joint surfaces. A torn cartilage in the knee or a loose piece of bone or cartilage in the joint can do this. Once a joint is stuck in this way, it may need to be wiggled around to unlock it. This may also cause a pop.

Finally, joints that are arthritic may crack and grind. These noises usually occur each time the joint is moved. This noise is due to the roughness of the joint surface due to loss of the smooth cartilage.