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Your skin can itch for many reasons, such as allergies, insect bites and dry skin. The itch, called pruritus, will usually go away once you treat what’s causing it. But sometimes an itch can be chronic, meaning it lasts six weeks or longer. This is known as chronic pruritus.  

In rare cases, chronic pruritus can be a sign of cancer. Here, I’ll explain what types of cancers may cause itchy skin, what the itch feels like...