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.
Lower back pain. Lower back pain will be isolated to the spinal column area but may radiate to the buttocks, thighs, or even feet. |. It is easy to confuse kidney and lower back pain. Lower back pain can be dull, like an ache, and continuous. Kidney pain generally occurs in waves and will be accompanied by other symptoms, including painful urination or fever.