varicose veins on a female senior legs. the structure of normal and varicose veins.

adult age blood body care circulatory collage damaged deep dilatation disease dvt eczema edema elder flow health healthcare healthy human illness insufficiency leg medical medicine normal older pain patient person phlebeurysm phlebotomy problem senior spider structure swelling system thrombophlebitis thrombosis treatment twisted ulceration valve varicose vascular vein venous vessel woman