Holy popping sternums Batman?
468617
go to your doctor..\nand is this your sternum or the xyphoid process, at the tip, because if the xyphoid is broke, it could pierce your lungs or heart..so go to the doctor, get an x-ray
1139289
shoulders that are broad...like superman
614626
No its not normal.  See a doctor
604506
I am a Rib?How cool is that...
461700
You're popping the air in the joints.
1053292
during a panic attack your intercoastal muscles that attach your sternum to your ribs tighten - can almost mimic a heart attack
845296
sounds like a pinched nerve
574835
my knees pop every time i bend down
706438
Ha Ha HaHaHa, ouch! my rib
735824
No - that is a myth.  When your fingers or other bones pop, unless you have an actual problem, it's just air between the joints.  It is not damaging and will not make your "knuckles" get big --  it's just a myth
1092716
that first answer was great and hilarious :) does that guy even read the questions he answers?\n\nanyway, what this could be is either popping from your acetabulofemoral joint, your sacroiliac joint or your lumbar joint...\n\nor it could be any of the internal organs emitting a strange sound...\n\nit would be wise at this time to get an xray of your lower abdomen/pelvic area and see if all the structures are aligned and balanced... good luck
37565
I looked up shoulder problems and almost every diagnosis had "clicking" or "popping" as one of the  symptom.  If your shoulder pops or clicks it can mean an injury to the shoulder joint that should be looked at by a doctor.\n\nThe web site noted below has a lot of information and pictures of the shoulder, types of injuries, and symptoms.
415179
When you pull the joint, you create negative pressure in the synovial sac (fluid sac in the joint that allows movement without the bones rubbing on each other). Nitrogen is a gas dissolved in the synovial fluid (and blood and interstitial fluid) which is pulled out of the fluid to balance the negative pressure (essentially a vacuum) created. (This is because the physical force of the vacuum is greater than the opposing chemical force keeping it in solution.) The rush of nitrogen makes the popping sound.\n\nKids having chest Xrays often have little bubbles of nitrogen visible in the shoulder joints, from having their arms held up out of the way of the Xray. It's not harmful.
1083249
Rib out of place. see a chiropractor
863872
lift em up on ur shoulders
1102645
Erection of the male organ !
594711
AH CRAP!!!!\n\nOH NO!!!\n\nHOLLY BAT WINGS BATMAN!!!\n\nI STUBBED MY TOE!\n\nAUGHHHHHH!!!!!!!!!\n\nWTF, Mate?!?