Panic and palpitations are common symptoms in clinical practice. There are many causes of panic and palpitations, as follows: 1. Common causes: such as arrhythmias, i.e. premature ventricular beats, premature atrial beats, rapid or slow heartbeat, etc., collectively known as arrhythmias. In the onset of arrhythmia, the patient will have clinical manifestations of panic, palpitations; 2, insufficient blood supply to the heart muscle: may appear panic, palpitations; 3, hyperthyroidism: the heart rate is very fast, will also be manifested as panic, palpitations, often in addition to panic, palpitations, also manifested as sweating, wasting, eat more, more impatient nature; 4, anemia: because the hematocrit is very low, resulting in faster heart rate, in order to maintain the body’s blood supply and oxygen supply In order to maintain the body’s blood supply and oxygen supply needs, the heart rate will be fast, will also occur panic, palpitations; 5, hypoglycemia, etc., of course, panic palpitations also have some functional, that is, the examination is normal, but the patient performance panic, palpitations, according to the cause of the disease, the targeted treatment.