Are Varicose veins a health threat.can it lead to a heart attack?

Complications can include:
Bleeding from a varicose vein, which may occur without an injury or after an injury to the thin skin over the varicose vein. Bleeding can be heavy, but it can be controlled by elevating the leg and applying pressure to the area that is bleeding.
Blood clots or inflammation (superficial thrombophlebitis), when a blood clot and inflammation develop in a small vein near the surface of the skin. Unlike blood clots in deep veins, clots in superficial veins rarely travel to the heart or lungs, where they could cause serious blockages.
Dry, stretched, swollen, itching, or scaling skin.
Thin, fragile, easily injured skin at or above the ankle.
Open sores (ulcers), usually near the ankles.
Skin color changes (stasis pigmentation) around the ankles and lower legs.
Fungal and bacterial infections, which may arise from skin problems resulting from fluid buildup (edema) in the leg and increased risk of tissue infection (cellulitis).