Dialysis: Darkening of the skin in dialysis patients is thought to be due to sun exposure and the build up certain chemicals in the body die to renal failure.
Answered 2/27/2013
5.3k views
Increased pigment: Kidney failure often causes increased pigmentation similar to tanning. The mechanism may be related to molecules and toxins that build up and are incompletely removed by dialysis. The pigmentation usually causes no problems. There can also be small deposits of calcium in skin, itching, sores from scratching and other skin problems in dialysis patients that can cause more severe symptoms.
Answered 8/6/2015
2.4k views
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