Whether the arrhythmia is serious or not is related to the symptoms and the cause of the arrhythmia. In mild cases, no treatment is needed, while in severe cases, medication and, if necessary, surgery are required. In the case of mild sinus arrhythmia, most of the time it is caused by breathing exercises during measurements, lack of sleep, poor mood, and overexertion. It may or may not be accompanied by symptoms such as chest tightness and breath-holding. Generally, no treatment is needed, and most of them can be relieved after sufficient rest, or relaxation. In the case of other arrhythmias, or with underlying heart disease, there are also shortness of breath, palpitations (rapid heartbeat, often accompanied by panic), and decreased tolerance for activity, indicating a more serious situation. If it is due to tachyarrhythmia, such as atrial fibrillation, supraventricular tachycardia, premature beats, etc., if the blood pressure can be tolerated, you can follow the doctor’s instructions to take amiodarone hydrochloride tablets, digoxin tablets, metoprolol succinate extended-release tablets, bisoprolol fumarate tablets, etc., there are certain contraindications to the drug, you must ask the doctor carefully before using the drug, and radiofrequency ablation is also feasible, if necessary. If it is slow arrhythmia, such as escape beat, sick sinus node syndrome, sinus arrest, etc., you can follow the doctor’s instructions to take atropine sulfate tablets, isoprenaline hydrochloride tablets, pay attention to the adverse effects of medicines, and drug improvement is not obvious or intolerant, can be under the guidance of the doctor for pacemaker implantation treatment. It is recommended that if arrhythmia occurs, you should go to the hospital for ECG, cardiac ultrasound and other relevant examinations to make a clear diagnosis and symptomatic treatment.