Supraventricular tachycardia generally refers to supraventricular tachycardia, and some patients experience palpitations and dizziness before the onset of the disease. Supraventricular tachycardia is a relatively common cardiac arrhythmia, which is mainly associated with physiological factors such as aging, smoking, and physical labor, as well as pathological factors such as myocardial ischemia, hyperthyroidism, shock, and pericarditis. Usually, some patients experience uncomfortable symptoms such as palpitations, dizziness, anxiety, chest tightness, and shortness of breath before the onset of supraventricular tachycardia. At the same time, a small number of patients do not have obvious symptoms before the onset of supraventricular tachycardia, but some other patients with severe conditions may have syncope, heart failure, angina pectoris and other symptoms, which can be life-threatening. For those who are clearly suffering from supraventricular tachycardia, they should actively cooperate with the doctor’s treatment, stay in bed when accompanied by uncomfortable symptoms, and seek medical treatment in time. It is recommended that people with supraventricular tachycardia adjust their mindset, develop good lifestyle habits, and visit a doctor regularly to monitor their condition.