Varicose veins — the twisted, raised veins that appear most often on the legs — are treated by a lot of people as a purely cosmetic nuisance. They are not. They can meaningfully affect quality of life, causing discomfort and pain, and they can lead to complications that are considerably more serious than their appearance suggests.
Understanding the root cause
Healthy leg veins move blood upward against gravity, and small one-way valves inside them prevent it from falling back down between heartbeats. Varicose veins develop when those valves weaken. Blood pools, pressure inside the vein rises, the wall stretches, and the vein enlarges and twists.
Genetics play a substantial role — if your parents had them, your odds are higher. Pregnancy, prolonged standing, obesity and age all exacerbate the process. What matters clinically is that the visible vein is downstream of the problem. The failing valve came first.
Symptoms and potential complications
Symptoms range from mild to genuinely limiting, and commonly include aching or heavy legs, swelling in the ankles and feet, itching around the affected veins, and discoloration or ulceration of the skin.
Left untreated, varicose veins can progress to more serious complications. Chronically high venous pressure damages the skin around the ankle, producing the brown staining and thickening that precede a venous ulcer — an open wound that can take months to heal and tends to recur. Superficial thrombophlebitis, skin infection and bleeding from a thin-walled vein near the surface are all possible. Bleeding in particular can be dramatic, since the vein is under pressure.
The point is not to alarm. It is that the natural history of untreated venous reflux runs in one direction, and the treatment gets more involved the longer you wait.
Diagnosis and treatment
Diagnosis typically involves a physical examination and a duplex ultrasound — a painless, non-invasive test that uses sound waves to assess the direction and speed of blood flow in the veins. Done properly, with the patient standing, it maps exactly which vein segments have failed. That map is what makes treatment durable rather than cosmetic.
Treatment depends on severity. Lifestyle measures — maintaining a healthy weight, elevating the legs, avoiding prolonged standing or sitting — help symptoms. Compression stockings improve circulation and reduce swelling. And minimally invasive procedures, including endovenous laser ablation, radiofrequency ablation, medical adhesive closure and sclerotherapy, close the failing vein at its source through a needle puncture, in the office, with you walking out afterward.
Prioritizing vascular health
Understanding what causes varicose veins, what they feel like as they progress and what can be done about them lets you act while the problem is still small. If you have symptoms, get a proper diagnosis and a real discussion of the options rather than treating the visible vein and hoping.