No, not pins, but rods along both sides of the spine. My sister has scoliosis and had rods put in when she was a child. They are still there (she's in her 30s). It was not a problem, I was just careful with the pressure and checked in with her a lot. I worked alot of her scar tissue. (her scars run the entire length of her back) It was definately a different feel under my fingers!