The possible causes include protrusion of the disc at your lower back.
The disc functions as a shock absorber in the spine, withstanding physical loads while allowing mobility and flexibility of the spine.
The other possible cause is that you may have a break in the bone of the lower back (called pars interarticularis).
Weight-lifters tend to have slightly higher risk of having the break in the pars interarticularis.
Thanks
Dr Hee Hwan Tak
