Trigger — Point

An involuntary withdrawal or behavioral response to pressure, reflecting extreme tenderness.

Activated by a "key" trigger point in another muscle; resolving the key point often inactivates the satellite automatically. Diagnostic Indicators: Trigger Point

TrPs typically arise from , which can be acute (injury) or chronic (poor posture, repetitive stress). Trigger Point

Physically present as a palpable nodule but only painful when compressed; they do not cause spontaneous pain. Trigger Point

Pain perceived in a distant location from the palpated nodule, following established muscle-specific maps. II. Etiology and Common Locations

This report outlines the clinical and therapeutic framework of trigger points (TrPs), hyperirritable nodules found within taut bands of skeletal muscle fibers.