Myofascial trigger points are contracted knots of muscle tissue. They result from overload stress, and are one of the most prevelent injuries to muscle tissue. They are also one of the most common sources of pain in the body. Headaches are one type of pain that trigger points frequently cause. A number of muscles can cause pain to refer into the head and temples. One of the more common offenders is the sternocleidomastoid muscle. This muscle is often overworked from poor neck posture, and the trigger points that can form will refer pain into the head, temple, and around the eye. Trigger points don’t release on their own, a manual therapy like trigger point massage is required to treat the area and relieve symptoms.