Radiofrequency ablation (RFA) can cause leg pain, though it typically occurs as a temporary side effect rather than a permanent complication. After the procedure, patients commonly experience mild to moderate discomfort at the treatment site, which usually subsides within a few days to a few weeks. This post-procedure pain is a normal inflammatory response as tissues heal.
When RFA is used to treat leg conditions—such as varicose veins or nerve pain—temporary leg discomfort is expected during recovery. However, RFA can also inadvertently affect nearby nerves or tissues, potentially causing nerve-related pain or numbness that may persist longer. This is considered a rare complication but remains a documented risk.
For patients undergoing RFA for other conditions (back pain, for example), referred pain in the legs is possible depending on which nerves are targeted. If the procedure affects nerve roots that extend into the legs, patients may experience radiating pain, weakness, or tingling.
The severity and duration of leg pain depend on several factors: the location of treatment, the extent of the procedure, individual healing capacity, and whether complications arise. Most patients manage post-procedure discomfort with ice, elevation, over-the-counter pain relief, and activity modification. However, if leg pain persists beyond the expected recovery period, worsens unexpectedly, or is accompanied by swelling, infection signs, or neurological symptoms, medical evaluation is warranted to rule out complications.