A single page in "Explain Pain" was enough to justify the price that I paid for the book. It told me that nerve damage in the back can cause swelling in the foot, and told me how it does it. When a nerve pinch sends pain signals up to the central nervous system, it also sends nerve impulses down to the terminal ends of the nerve fibers, where inflammatory chemicals are released, causing neurogenic inflammation.Two years ago, the piriformis muscle in my right buttock went into spasm to help stabilize my right sacroiliac joint. It pinched my sciatic nerve, which caused referred pain in my right leg below the knee. This is called Piriformis Syndrome. During the last two years, my right leg has also been swollen below the knee. Before I read "Explain Pain", I did not know that my edema and my referred pain had a single cause, but now I know that I can't get rid of the edema until I get rid of the nerve pinch.This was a great surprise for me, because I have never seen any indication in Piriformis Syndrome case histories that edema is an essential part of Piriformis Syndrome. However, if doctors do not know that edema and referred pain have the same cause, they will not report edema as part of a Piriformis Syndrome case history.
Rating: [5 of 5 Stars!]