Lower back pain -- tho most people normally assume it is the spine in trouble, some other part close to the back may be actually the cause... Some of such causes include
- Kidney trouble (an issue with men who may resort to steriods when pumping iron), and stones
- Women's reproductive issues -- cysts, fibroids, infection - can all cause lower back strain.
- Swelling of arteries in the lower back/abdomen region.
- STRESS !!! The psoas muscles which support the torso contract in tension.