This is a great question, one I hear frequently from patients. I counsel patients that the downside of removing the veins on the back of the hands is that there is one less area where an IV can be placed or blood can be drawn as they get older. That being said, most people who are asking to have these dealt with have prominent forearm and antecubital fossa (inside of the elbow) veins where these things can happen as well. We know it is safe to remove these veins in the hands from years of experience in the ICU, where patient's hand veins often "burned out" from having IVs in them for several days at a time. Veins in the forearm may be used for dialysis later, so I typically do not remove these (hopefully they'll never be needed but you want them there if you do!). One final word, I do not typically offer sclerotherapy of the hands but, instead, offer patients a total HVR, Hand Vein Removal. Sclerotherapy of the hand veins requires frequent follow up appointments to drain trapped blood in the hands, something that can be painful (not just the visit - in between the visits). I've had patients come to me because they had them injected and then the original provider couldn't drain the blood properly, leaving them with painful bulging hard veins for several months before they absorbed all the way. HVR is a 15 minute treatment in the office that provides instantaneous results (veins are gone when you leave) and none of the associated painful recovery. Hope this answers your question! Good luck!