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.
your back will be very tender at the kidney location. When your kidney is swollen and the renal capsule becomes tight and painful, you will have mid to lower back pain, and your back will be very tender over your kidney. Anything that jars or bumps your kidney, such as a small bump or a soft punch in that area, will cause severe pain.