You might also call a trigger point a knot in your muscle. They're usually found in skelatal muscle. When pressed, a trigger point can cause sharp pain at its location along with pain in related areas of the body. Trigger points can be caused by strain, stress, trauma and even smoking. They are usually located and diagnosed by complaints of pain and manual palpation. A chart of common trigger points would assist the patient in understanding muscle systems and referred pain.
This is an illustrated guide that shows basic trigger points and their locations on the body. It explains how to manipulate the trigger points in a safe manner to help alleviate common pains. It also includes a section for frequently asked questions.
This diagram could be helpful to a medical student, but the ebook/study guide is not very long at all, and may not be as helpful to someone not in the medical field. It needs to be longer and more descriptive.
A short reference to trigger points on the body and where they are located. it has diagrams with labels of points and gives an explanation of stress of the body and overall health in effect to them.