Endovenous thermal ablation is a procedure used to treat varicose veins by using heat generated from a catheter to close off the affected veins. The procedure is performed under local anesthesia, and the heat from the catheter causes the vein to collapse and seal, rerouting blood flow to healthier veins.

Endovenous thermal ablation is highly effective in relieving symptoms such as leg pain, swelling, and heaviness, and it offers a minimally invasive option compared to traditional vein stripping surgery.