vascular surgeon is holding evlt red laser optical fiber for endovenous laser coagulation for treatment varicose veins

anatomy artery blood body capillary catheter circulation cosmetic dermatologist dilatation disease diseases electrolysis endovenous evlt flow health healthy human illness insufficiency laser leg medical medicine pain phlebitis procedure red removal sclerotherapy spider surgery telangiectasia therapy thrombosis treatment ulcer ulceration valves varicose vascular veins venous vessel vessels