What could a sizable and movable soft lump to the left of your spine be in between the bottom of the waist and top of your butt with a light ache at the site but generalized muscular and joint pain?
Answer . It could be something called a myofascial nodule... When you've hurt your back in the past, was the back pain located in this area and you discovered the nodule …at that time? If so, it would be that... It's a small torn/irritated muscle & connective tissue area called "myofascial" nodule...\n. \n. \nIt could also be a sebaceous cyst... Has it ever appeared to be infected and/or drained pus??\n. \nHighly unlikely it would be a fatty (benign) tumor in that area... (MORE)