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.
Signs and Symptoms Related to Kidney Pain. Many causes of kidney pain may not be accompanied by other signs and symptoms. However, pain in the mid back or flanks with one or more of the following signs and symptoms may be related to a disorder of the kidney or other organs of the urinary system (ureters, bladder, urethra). In men, the prostate may also be responsible for some of these signs and symptoms.