Endovenous radiofrequency ablation on the greater saph 2weeks ago.now tingling pain tenderness not at the site of the surgery but below in the leg why?

Nerve irritation.: Endovenous ablation of the saphenous vein is done with either a laser filament or radiofrequency catheter. Since the saphenous veins is very close to the saphenous nerve, when the vein is treated by ablation, the heat can be transferred to the nerve resulting in tingling or numbness over the area supplied by the nerve. This should resolve over several months but occasionally can be permanent.

Inflammation: Inflammation of the femoral vein can cause this sensation. This should improve over time. Go see the physician who performed the procedure to both let him know of your symptoms and for his advice.

Nerve response: When endovenous RFA is done to treat saphenous vein reflux (usually performed for varicose vein treatment), there is a small risk of nerve irritation, inflammation, or damage as a result of RFA heat energy being delivered to a nerve adjacent to the saphenous vein (saphenous nerve). The discomfort or numbness is often located below the treatment site since distal nerve conduction is affected.

Radiofrequency: as partly healing process there is an inflammatory reaction that occurs, which may be around one of the nerves in the calf. I would discuss this with the Dr. that performed the procedure if it does not resolve. Local use of Arnica gel may be helpful in reducing the inflammatory reaction. Also use of a compression stocking may be of benefit to reduce inflammation