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.
Go to the Kidney Diseases health topic, where you can: Pain caused by the kidneys is typically felt in the flank area, which is in the back, just at the lower edge of the ribs on either side of the spine. Pain caused by the kidneys tends to be sharp and severe, to and occur in waves.hat Isn't Kidney Pain. It is uncommon for the kidneys to cause dull, aching pain. People sometimes equate back pain with kidney pain, but aching pain in the back -- especially the lower back or the middle of the back -- is usually due to muscles, ligaments, or even vertebrae and disks in the spinal column.