What are Varicose Veins?
Venous Overview - How do Varicose Veins Form
Veins are the vessels that return blood to the heart once it has circulated through the body (as opposed to arteries, which carry oxygen-rich blood from the heart to the body). Veins have one-way valves that propel blood in the proper direction. If these one way valves stop functioning properly, blood can flow backwards, called venous insufficiency. The backwards flow of blood causes “pooling” in the vein, causing it to stretch. This process of venous insufficiency leading to pooling and stretching results in varicose veins.
Varicose Vein Appearance & Symptoms
Varicose veins are swollen, dark blue or purple blood vessels that you can usually see and feel beneath the skin. They often look like twisted ropes, and usually appear on the thighs, calves, and ankles. Some patients with varicose veins are free from symptoms. Most however develop aching, throbbing, cramping and or pain that may indicate the need for medical attention. Sometimes, however, more significant problems including bleeding, ulcers, blood clots, pulmonary embolus, and or death can develop if abnormal veins are left untreated.