There is tons of misinformation out there about back pain. It seems that no matter how much good information that is put out, we need an order of magnitude much greater to fight the BS. Our lumbar spine is actually quite durable. Lower back pain is very common and something that can be treated conservatively and non-operatively in most cases. These infographics synthesize the information written in "Should You Fear Lumbar Flexion," by Dr. Sam Spinelli, PT and posted on the site strongerbyscience.com and "Revisiting The Spinal Flexion Debate: Prepare For Doubt" by Greg Lehman, BKIN, MSC, DC, MSCPT.
Another relevant article by Greg Lehman is "Reconciling Spinal Flexion And Pain: We Are All Doomed For Failure But Perhaps It Doesn't Matter."