For clarity reasons, a WSPS will be denoted in what follows by WSPS (U, t) = true. If the WFMS identifies a WSPS for U (R-type(T)) with regard to CT and Ctl (w), it starts a delegation process that returns true if it was able to bypass this WSPS and false elsewhere.
The kidneys are found in the upper back (the âsmall of the backâ, it is often called). Kidney disease can cause pain in this part of the upper back. Pain in this area is common, and often comes from the muscles of the back, or from the spine. Pain from the kidneys is often constant, or can be sharp, like being stabbed.
Many people sometimes mistake a pain caused by kidneys with back pain or middle back pain that is usually caused by muscles and ligaments problems. A kidney pain is normally felt in the flank area that is at the lower edge of the ribs on the side of the spine. If you feel a flank pain that tends to be severe and occurs in waves, that is most likely kidney pain. Kidney pain occurs anytime.