Why does YOUR back pop all the time?

Back popping, or cracking, is often due to gas bubbles forming and collapsing in the synovial fluid of the joints, which is a normal phenomenon. It can also occur from the movement of ligaments and tendons over bones or other structures during certain motions. If it’s accompanied by pain or discomfort, it might be worth consulting a medical professional to rule out any underlying issues. Otherwise, occasional popping is generally harmless.