The sternocleidomastoid is a large muscle in the neck that can cause pain behind the ear, down the side of the neck, or referred pain. Medical News Today Health Conditions ...

If you have a literal pain in the neck, there are things you can do to help identify, manage, and improve muscle pain. If you think or know you have sternocleidomastoid (SCM) pain, we explain some ...

Two patients with anterocollis and absence of aberrant EMG [electromyographic] activity in the SCM [sternocleidomastoid] or scalene muscles were injected with BoNT [botulinum toxin]-A into the ...

Histochemical studies of scalene muscles have shown important changes at the cellular level of the ... and extensor digitorum and tightening or control of the scalene, sternocleidomastoid, ...

Neck flexion is the action of moving your chin down toward your chest. Even though this is a simple motion, it’s possible to develop pain, tightness, and decreased mobility in this area. Learn ...