The normal range of pulse rate is 60-100 beats/minute, less than 60 beats/minute is clinically known as bradycardia. Greater than 100 beats/minute is called tachycardia. Pulse refers to the arterial beat that can be touched on the surface of the human skin. In clinical work, the site of pulse detection is usually in the carotid artery, radial artery and femoral artery. Under normal circumstances, the body’s pulse rate is consistent with the number of heartbeats, and the pulse beat is regular, neat and strong. A pulse less than 60 beats per minute is considered bradycardia, which is clinically common in sinus node dysfunction or atrioventricular block, etc. Athletes’ heart rate is generally slower due to the enhanced structure of the myocardium as a result of long-term exercise. Pulse greater than 100 beats per minute is tachycardia, which can be seen in patients with anemia, atrial fibrillation, hyperthyroidism, and so on, but also can be seen in normal people after physical exercise. Excluding physiological factors, if there is an abnormal pulse rate, it is recommended to go to a regular hospital to find out the cause, and according to the doctor’s instructions for active treatment.