Q: hey mike, ok so the last couple times ive been doing situps, i've noticed that my back cracks everytime i get down to the floor. its a bone in my lower back, and i can hear it.. i dont know if it is bad or not, or if it has always been like that or just recently. it doesn't seem like it would be dangerous since alot of people have bones that crack everytime you move them in a certain direction, i was just looking for some more opinions though.

A: If there's no pain then it's probably OK, but to be sure you should still talk to a doctor or a physical therapist. However if you feel any sort of pain along with the cracking, then you definitely need to have it looked at.