Probability of Developing Varicose Veins

Varicose veins affect approximately 23% of American adults (about 35 million people). Women are 2-3 times more likely to develop varicose veins than men, due in part to hormonal factors and pregnancy. The prevalence increases significantly with age: less than 10% of people in their 20s have varicose veins, compared to over 40% of those over 50.

Varicose veins occur when valves in the veins become weak or damaged, allowing blood to pool rather than flowing efficiently back to the heart. Risk factors include family history (the strongest predictor), age, female sex, pregnancy, obesity, prolonged standing or sitting, and history of blood clots. Spider veins (smaller, superficial veins) affect even more people: about 50-55% of women and 40-45% of men.

While often considered a cosmetic issue, varicose veins can cause significant symptoms including aching, heaviness, swelling, itching, and cramping. Complications include skin changes, ulcers (affecting about 1% of adults), bleeding, and blood clots. Treatment options include compression stockings, sclerotherapy (injection), laser treatment, radiofrequency ablation, and surgery. Modern minimally invasive treatments have success rates of 90-95% and are typically performed as outpatient procedures.