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Answer Wiki. Some knots can come out within a couple minutes. Others never come out. I've had extreme back and neck pain for the past year and a half, most of it just tension in my muscles. I've had numerous massages, taken other treatment, all to no avail.
What causes knots in the muscles of the back and neck? We could delve deeply into the science and discuss muscle physiology, metabolic waste such as lactic acid, trigger points, myofascial pain, and all the little details involved hereâ¦but that is not my goal.