What is sclerotherapy?

Sclerotherapy is a simple, minimally invasive method to treat spider or varicose veins, usually in the legs. A special solution is injected directly into the problem vein, causing it to collapse and eventually fade as the blood is routed through healthier nearby veins. Sclerotherapy is used for both cosmetic and medical reasons as it improves the appearance of veins and relieves painful symptoms. Sclerotherapy is also used to shrink mild to moderate hemorrhoids.

Penn Medicine Dermatology’s experienced dermatologists and colorectal specialists provide sclerotherapy with skill, safety, and care.

Who is a candidate for sclerotherapy?

Varicose vein sclerotherapy is best for adults in good health who have small to medium varicose or spider veins. It’s not recommended if you are pregnant, breastfeeding, or have certain blood-clotting problems. If your veins are large, painful, or causing issues like swelling, skin changes, or open sores, your doctor may suggest a different treatment, such as varicose vein stripping.

Sclerotherapy for hemorrhoids is usually recommended for people with mild to moderate internal hemorrhoids (grades 1 or 2). It’s a good option when symptoms like bleeding or discomfort don’t improve with changes in diet or the use of medicated creams. This treatment may also be advised if you aren’t able to have hemorrhoid surgery because of other health concerns.

What happens during sclerotherapy?

During varicose vein sclerotherapy, a very fine needle is used to inject a saline or chemical solution into the affected veins. This solution irritates the vein’s inner lining, causing it to close off. You may feel a mild pinch or burning sensation during the injection. The number of varicose vein injections depends on how many veins are being treated. Multiple sessions may be needed for the best cosmetic results, especially for larger or more visible veins.

With sclerotherapy for hemorrhoids, a special solution is injected into the tissue around internal hemorrhoids. This cuts off their blood supply, causing them to shrink and easing bleeding and discomfort. The procedure is usually quick and nearly painless, with no need for anesthesia.

Sclerotherapy recovery and aftercare

Most people can return to normal activities right after sclerotherapy for veins. Your provider may ask you to wear compression stockings for several days to support healing. Walking is encouraged to help with blood flow and reduce the risk of blood clots. Treated veins usually begin to fade within a few weeks, though full results may take a month or longer. Common side effects include mild swelling, bruising, or soreness at the injection site. Some people also experience slight stinging or itching, which typically goes away within a few days or weeks. Serious complications are rare but may include allergic reactions, skin ulceration, or the formation of new small blood vessels. Call your doctor if you notice unusual pain, skin changes, or signs of infection.

After sclerotherapy for hemorrhoids, most people can resume daily activities right away. You might experience mild pressure, spotting, or discomfort for a few days. These symptoms usually improve quickly. Serious side effects are uncommon, but contact your provider if symptoms worsen or don’t improve as expected.

Expert sclerotherapy care

Sclerotherapy requires medical expertise and precise techniques for the best results. Our procedures are devised to help you heal quickly with minimal disruption to your daily life. Whether you’re seeking relief from hemorrhoids or exploring varicose vein sclerotherapy, Penn Medicine’s highly trained specialists will determine if sclerotherapy is right for you and deliver safe, effective care at a location near you.

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