<unk>  on forehead and scalp<unk>  is a colloquial description for crystallized urea deposits that can be found on the skin of those affected by chronic kidney disease (CKD). In states of prolonged kidney failure and subsequent<unk> , the high level of urea in the bloodstream leads to high levels of urea secreted by eccrine sweat glands as a component of sweat. As water evaporates off of the skin, it results in crystallization of the remaining urea. This condition is more common in severe, untreated<unk>  and is associated with serum BUN levels >200. It is becoming rare in people with chronic kidney disease managed on long-term hemodialysis, with estimated prevalence between 0.8 and 3%.
Uremic frost
Epidemic dropsy
Heat stroke
Lightning strike
Shark attack
Newark water crisis
Flint water crisis
Heat illness