Why do muscles in spasm (trigger points) cause so much pain?
There are approximately 300 muscles that attach to the jaw, skull, and neck. Any muscle dysfunction can restrict blood flow in the blood vessels that pass through the muscles, as well as compress the nerves that also run through the muscles. This can cause pain in the jaw, ear, eyes, face, sinuses, teeth, neck, and shoulders, as well as all types of headaches.
