Fast pulse can be seen in organic lesions, such as: 1. Arrhythmia. The more common is supraventricular tachycardia, the mechanism is not clear, the treatment can be applied amiodarone, etc.; atrial fibrillation with fast heart rate, can appear rapid pulse, the treatment can also be applied amiodarone, if necessary, radiofrequency ablation. 2, hyperthyroidism. Hyperthyroidism can cause tachycardia and stimulate rapid pulse rate. 3, other diseases, such as anemia, low blood pressure, low blood sugar, etc. can appear rapid pulse rate. Physiological causes are mainly tension, anxiety, stress, staying up late, etc., resulting in sympathetic nerve activity, treatment is mainly to strengthen exercise, increase the exercise time, pay attention to the regular diet, reduce psychological stress, avoid staying up late for a long time.