Premature ventricular contractions, i.e., ventricular pre-systole, can occur in normal people and patients with various heart diseases, and can be triggered by ischemia, hypoxia, anesthesia, electrical stimulation, chemical stimulation, pharmacological stimulation, electrolyte disorders, psychiatric factors, smoking and alcohol. Treatment includes conservative treatment, drug treatment and catheter ablation. 1. Conservative treatment: If there is no organic heart disease and the symptoms are not obvious or mild, no medication is needed, and the patient should take more rest, reduce anxiety, and avoid strenuous exercise, smoking and other bad habits. 2. Medication: If the number of ventricular premature is high, the symptoms are obvious or combined with organic heart disease, medication such as metoprolol, propafenone, amiodarone and other medications can be used under the guidance of a professional doctor. 3. Catheter ablation therapy: A small number of premature ventricular contractions originate from the right ventricle or the left ventricular septum. If the symptoms are obvious and the effect of medication is not good, catheter ablation therapy can be considered under the guidance of a professional doctor. Ventricular preterm contraction is a common arrhythmia in clinical practice. Once it occurs, it should be treated in a timely manner in a hospital under the guidance of a professional doctor.