My wife has persistant lower back and buttock pain and pain left lower abdomenShe had MRI on lower back and hips which was clear except for bursitis in right hip for which she had an ultrasound guided injection The pain is still present.Could she have ovarian cancer.She is 64
Back pain is most probably due to back muscle weakness. If MRI is normal that means there is no nerve compression. I would suggest you to start her on calcium and vitamin B 12 therapy. She should also take muscle relaxant, and apply diclofenac ointment. Also warm water on back during shower will also help.