Sternocleidomastoid Trigger Points and Referred Pain Patterns - Anatomy Guide #1207326 (License: Personal Use)

The image illustrates the sternocleidomastoid (SCM) muscle with two primary trigger points marked by black dots near its sternal and clavicular origins; red shading indicates the muscle belly, while red dots show common referral patterns to the temporal region, forehead, eye, jaw, and mastoid area. This anatomical schematic helps clinicians and patients visualize how dysfunction in the SCM can mimic tension headaches, sinus pain, or TMJ disorders. The illustration emphasizes the muscle’s dual role in neck rotation and flexion, and how myofascial pain spreads distally.

Used on health education pages, physical therapy resources, chiropractic sites, or headache management guides to explain musculoskeletal causes of head and facial pain; targets users searching for “neck pain causing headaches” or “trigger point therapy for SCM.”