Sinus bradycardia does not cause ST-segment elevation. Sinus bradycardia and ST-segment elevation usually appear in the diagnostic cues of an EKG, indicating the presence of an abnormality, but are two different conditions. Sinus bradycardia is defined as a heartbeat of less than 60 beats per minute, which may be associated with brain disease, etc. ST-segment elevation is indicative of myocardial ischemia or infarction, etc. However, sinus bradycardia does not cause ST-segment elevation. However, sinus bradycardia does not cause ST-segment elevation. If sinus bradycardia and ST-segment elevation occur at the same time, it should cause the patient to pay great attention to it, and it is recommended to cooperate with the doctor as soon as possible to improve the blood routine, cardiac ultrasound, coronary angiography, etc., to comprehensively analyze the specific triggering causes, and to exclude the possibility of brain disease or myocardial disease. It should be noted that the electrocardiographic manifestation of ST-segment elevation may be temporary or persistent, and should be analyzed in detail together with t-wave changes.