After varicose vein surgery, the stitches are normally removed on the 7th day or so, and the patient may need to extend the stitches removal time to 10-14 days if there is any infection, as follows: 1. Normal: varicose vein surgery is a minimally invasive surgery, and the incision is about 1cm, and it can be grown well in about 7 days; 2. Infection: if there is any redness, swelling, tenderness, and subcutaneous accumulation of fluid in the incision, the incision removal time will need to be prolonged, and the stitches removal time can also be carried out at the 10-14 days if the infection of incision is gradually alleviated. If the infection of the incision is gradually reduced, the thread can be removed in 10-14 days. When removing the stitches, care should be taken not to leave the threads inside, and also to observe the condition of the incision. If the incision is not strong, you can use band-aid to pull on both sides of the skin to reduce the tension and the chance of reopening after suture removal.