The purpose of this clinical trial is to know which is better to treat the branch vein at the same time or in stages during radiofrequency ablation. The main questions it aims to answer are:
Does the patient who did not treat the branch vein in the first stage of operation need to intervene again? Are there any differences in patients' indexes between the two surgical strategies?
Participants will:
Radiofrequency ablation with or without foam sclerosing agent therapy One week, three months and six months after operation, go to the clinic for a reexamination.
Record their symptoms
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