A Clear Guide to Trigger Points
Trigger points are sensitive areas within muscle that may contribute to local or referred discomfort. This article explains how they are understood, assessed, and addressed without overstating what they can explain.
The term "trigger point" is commonly used for a sensitive area within a muscle that may produce local tenderness or pain felt somewhere else. Referred pain is a real experience, but the way trigger points are defined and identified is not perfectly consistent.
A sensitive area in the upper trapezius may be associated with discomfort around the head or neck. Sensitivity around the shoulder blade may be felt in the shoulder or arm. Deep hip muscles may contribute to pain felt in the buttock or thigh. These patterns can offer useful clues, but they do not prove that one muscle is the source of every symptom in that region.
Muscle sensitivity may develop alongside repeated loading, prolonged positions, stress, poor sleep, injury, or changes in activity. It is usually more useful to consider the person's full pattern than to treat a tender spot as an isolated knot.
Sustained pressure, gentle movement, stretching, and progressive exercise may reduce sensitivity for some people. A change during treatment can help guide the session, but it is not a diagnosis by itself.
The goal is to use tenderness and referred symptoms as information, while continuing to consider the joints, nerves, movement demands, and other factors that may be contributing.
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