I really want to get filler done on nasolabial folds. I am scared of artery occlusion. How common is this?

Thank you for your question. Vascular occlusion is very rare, but not impossible. One of the best ways to avoid this is to find an experienced and qualified injector. 

Artery occlusion after filler injection is not very common- especially if done by someone who has knowledge of the anatomy in the region and injects with proper technique. Problems with artery occlusion occur when the filler is injected within or very close to an artery with a high injection pressure- this can cause the filler to go either backwards or forwards within the artery and potentially cause problems by blocking it and preventing blood flow. Again, this is a rare occurrence but it is a known complication. Injections, in my opinion, should be done by someone with proper training and knowledge of the arterial anatomy- in the nasolabial folds the course of the angular artery should be known. I do not recommend injections by someone who is not an MD, RN, or PA.