What is Angina? Angina or angina pectoris is one of many causes of chest pain or discomfort, squeezing, or painful feeling that occurs when the heart is not getting enough blood. Usually angina is felt in the arms, throat, shoulders, jaw, neck or back. Angina is also called angina pectoris. Angina is a common disease but can be hard to distinguish from other types of chest pain. It can be affected both men and women. Causes of Angina : Angina is caused by reduced supply of blood to the heart for a short period of time. The most common cause of reduced blood flow is coronary artery disease. Angina is classified in three types like: (stable, unstable, and variant) Stable Angina : It is usually caused by physical exertion. When someone exerc...