I hurt my back years ago when I was a teenager and became prone to re-occuring bouts of lower back pain. Thankfully I discovered stretching made a world of difference and when done regularly it helps heal the body and keeps it limber, making it less likely to be hurt again. If you suffer from severe chronic back pain stretching can be helpful in relieving pain.
Disclaimer: I am not a physical therapist, these are simply the stretches I’ve found work well for me. If you are currently experiencing severe back pain and are unsure if you are able to perform stretches, it may be best that you contact your physician first.