Which treatment involves a nonsurgical injection into a vein to treat varicose veins?

• A. Sclerotherapy
• B. Laser ablation
• C. Phlebectomy
• D. Cryotherapy

Answer: (A)

Injecting a sclerosant into a varicose vein to irritate the lining causes the vein to collapse and seal shut. This nonsurgical approach doesn’t involve incisions; it’s done in an office with a tiny needle. Over time the treated vein fades as it’s reabsorbed by the body, and blood reroutes through healthier veins. It’s especially used for small to medium varicose or spider veins. Other methods, like laser ablation, use energy delivered to the vein to close it; phlebectomy involves removing the vein through small incisions; cryotherapy freezes tissue—these aren’t injections into the vein, so sclerotherapy best fits the description.