Sternocleidomastoid Trigger Points: Pain Patterns & Relief Guide #1207036 (License: Personal Use)

The illustration highlights two primary trigger points in the sternocleidomastoid muscle-upper (near mastoid process) and lower (near sternum/clavicle)-with red shading indicating active nodules. Red dots map the typical referral patterns: frontal and temporal headaches, periorbital pain, jaw discomfort, and ear/neck tenderness. Muscle fibers are shown in striated detail to emphasize anatomical orientation and functional role in head rotation and flexion.

Used on physical therapy, chiropractic, or headache management web pages to educate patients about myofascial pain sources; supports content on tension-type headaches, TMJ dysfunction, or cervical strain assessment.