Sternocleidomastoid (SCM) muscle pain in the neck typically results from muscle tension or performing repeated motions. It can also occur with certain health conditions, such as asthma and pneumonia.

Pain behind the ear and down the neck and shoulder may result from tension or injury in the sternocleidomastoid muscle. Other possible symptoms include headaches, dizziness, and tingling. The ...

A 50-year-old woman arrived with progressive neck pain and stiffness, 3 years after a whiplash injury sustained in a motor vehicle crash. Previous diagnoses included cervical spondylosis and muscle ...

The following text summarizes information provided in the video. The retromandibular and posterior auricular veins join at the angle of the mandible to form the external jugular vein, which runs ...