So whenever I do a sit up I have a sharp piercing pain in my lower back. Its about in the area a tail would be if humans had tails. At first I thought it was my belt loop digging into my spine, but then I tried it in just underwear, and it hurt just as badly. Why does it hurt like this?P.S. its not stretching.. Created by Sean. health-en - general-health-care-en - pain-pain-management-en

u are not doing your sit up right, probably your neck or back is not in the right posture it should be when you re doing your sit ups. also make sure u do a little warm up before exercising. I think u should give the sit ups a break and rest ur back. U cant get it back once you damage it.