A member asked:

I am 24 yrs old a smoker and every time i pop my back my upper sternum pops. it just started in the last couple of weeks. what could it be?

A doctor has provided 1 answer
Dr. Ray Holt answered

Cracking your joints: There are joints all along your sternum where each of your ribs meets it. Also your sternum is made of of 3 parts and there are joints between those. Each of these joints can crack like your knuckles when you stretch them. The more you do it, the more they'll crack.

Answered 7/6/2013

5.2k views

Thank

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