From diabetes to pancreatic cancer, when an itch is a symptom of something more serious

I have an occasional “phantom” itch in the middle of my back in a place I cannot reach. I use a long-handled comb to give it a good scratch.There’s no obvious cause – no rash, no irritation or redness, no diagnosed skin disorder. It’s annoying, but it does not disrupt my life.Unfortunately, that is not the case for everyone who itches. About 15 per cent of the population suffers from chronic itch, according to Brian Kim, co-director of the Centre for the Study of Itch at the Washington…

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