A pulse rate of 53 beats per minute is abnormal in terms of its value, but it can occur in normal physiologic states, such as bradycardia in the elderly and in athletes, and often does not require special treatment. A pulse rate of 53 beats per minute can also occur in pathological conditions, such as bradycardia in patients with various types of organic heart disease. Hyperkalemia and hypothyroidism can cause bradycardia, and diseases of systems other than the circulatory system, including acute cerebrovascular disease, can cause bradycardia, so a pulse of 53 beats/min is abnormal if it occurs in a disease state. In addition, a pulse of 53 beats/minute is normal not only according to its frequency, but also according to its rhythm, and if the rhythm is caused by ectopic heart rate, it is abnormal.