A panic attack is a sudden onset of worry and fear, panic attacks, chest tightness and other discomforts, often accompanied by a sense of dying or choking. It lasts for a while and gets better on its own. A panic attack is also known as an acute anxiety attack. They can be characterized by a sudden onset of intense discomfort, including chest tightness, a feeling of being out of breath, palpitations, sweating, stomach discomfort, trembling, numbness in the hands and feet, a sense of dying, going crazy, or a sense of being out of control, and can last from a few minutes to tens of minutes each time they occur. The attacks may have no apparent cause or no particular situation. Physical examination and laboratory tests are usually not obviously positive. Many people continue to worry about having another attack during the interval after a panic attack, leading to emotional anxiety, fear of going out alone, and avoidance behavior. During a panic attack, patients should maintain a calm state of mind, face up to physical discomfort, and take certain anti-anxiety drugs under the guidance of a doctor if necessary. If the above symptoms occur, it is recommended to go to the hospital in time, early formal treatment.