Is cracking your back bad?
Cracking your own back, or self manipulation of the spine, that
is repeatedly performed may result in a hypermobility of the spinal
joints. This means that the joints are less stable and move
excessively, which may perpetuate pain and instability in the
spine. If you spine feels like it is tense and needs to be popped
or cracked, seek out a chiropractic physician or osteopathic
physician who specializes in manipulation of the spine in order to
have your back adjusted correctly.