This forum is for detailed questions dealing with kidney failure and technical questions from renal failure to the oeprations of how we get it all done. Could your question be more detailed if you are seeking information from the many people with dialysis experience on this sight.
I agree with guest. This could be many things and you should see your doctor. Poor bloodflow to your legs and feet could cause this. Other commons that this is a symptom of is Syphilis, HIV, or just Diabetes.. Hope this helps. If you're a dialysis patient your facility will be able to diagnose you.