Radiofrequency ablation procedure is to treat the disease by intervening under the image guidance and using the electric current generated by the catheter radiofrequency to generate heat to precisely ablate the lesion tissues. 1. Indications: commonly used in the treatment of cardiac arrhythmia, thyroid nodules, uterine fibroids, cervical polyps, high sympathetic excitation, solid tumors of the liver and other parts of the body and other related diseases. 2. Complications: vascular puncture complications such as local bleeding, infection, hematoma, pneumothorax, etc., catheter operation complications such as aortic regurgitation. If you need to take anticoagulant drugs after the operation, nosebleed and black stool may occur. 3. Precautions: postoperative bed rest, 6-12 hours of compression at the puncture site, light and easy to digest diet during bed rest, timely and close observation of any discomfort, etc. In case of cardiac radiofrequency ablation and other surgeries, anticoagulant drugs are often needed after the operation, and they should be used under the guidance of the doctor. Radiofrequency ablation surgery, although easy to operate, little damage, but with strict indications, must go to the hospital, by professional doctors to determine whether to apply.