ask: what are the risks from Sclerotherapy? Can there be difficulty with leg movement?

Hi Anonymous, If you are having numbness in your legs and difficulty walking, then I would recommend that you go back to the doctor who performed the Sclerotherapy because these should not be side effects.

Temporary side effects include:
Some side effects that may occur at the site of the injection include:

Bruising
Raised red areas
Small skin sores
Darkened skin in the form of lines or spots
Multiple tiny red blood vessels
These side effects usually go away on their own within a few days to several weeks.

Inflammation. This is usually mild but may cause swelling, warmth and discomfort around the injection site. Your doctor may advise aspirin or antibiotics to reduce the inflammation.
Blood clot. A lump of clotted blood may form in a treated vein that may require drainage. Rarely, a blood clot may travel to a deeper vein in your leg (deep vein thrombosis). Deep vein thrombosis carries a risk of pulmonary embolism, an emergency situation where the clot travels from your leg to your lungs and blocks a vital artery. Seek immediate medical care if you experience difficulty breathing, chest pain or dizziness, or you cough up blood.
Air bubbles. Tiny air bubbles may rise in your bloodstream. These don't always cause symptoms, but if they do, symptoms include visual disturbances, headache, coughing and nausea. These symptoms generally go away on their own, but call your doctor if you experience problems with limb movement or your sensory skills after the procedure.
Allergic reaction. It's possible that you may have an allergic reaction to the solution used for treatment, but this is uncommon.

Best Wishes,

Rosa