Cancer pain

Cancerous pain generally refers to pain directly caused by a tumor. Tumors invade or compress nerve roots, nerve stems, plexuses or nerves; invade the brain and spinal cord; tumors invade the periosteum or bone; invade parenchymal and cavity organs; invade or block the vasculature; tumors cause local necrosis, Ulcers, inflammation, etc .; in these cases can cause severe pain. The pain caused during tumor treatment is also considered cancerous pain.

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