After varicose vein surgery, there may be a recurrence, and there may also be sequelae. The main reason for recurrence is that we only close off the varicose veins, but the causes that lead to varicose veins are not removed, such as some people having a family history, some being involved in long-term physical labor, and some being excessively obese. If these factors are not eliminated, the patient is very likely to relapse. The recurring veins may be some other nearby superficial veins that some surgical methods did not remove but merely closed locally. These veins might also reopen, and sequelae are possible. The most common sequelae include nerve damage, such as saphenous nerve damage, which is quite common with an incidence rate of about 14%. The main symptom is numbness near the inner ankle, which might improve over time. Some people feel discomfort at the surgical site on rainy or cloudy days shortly after surgery, and if the deep veins are damaged during surgery, more severe consequences may occur, including poor reflux in the deep veins and deep vein thrombosis, etc.