Chest pain may be a symptom of a number of serious disorders and is, in general, considered a medical emergency. Even though it may be determined that the pain is noncardiac in origin (does not come from a heart problem), this is often a diagnosis of exclusion made after ruling out more serious causes of the pain. Cardiac (heart-related) chest pain is called angina pectoris. Pain in the chest wall muscles is called by other names, such as pectoralgia, stethalgia, thoracalgia, and thoracodynia.