VenaSeal does not typically require compression stockings afterwards, which is nice, but it has a higher risk of post-treatment phlebitis (a painful inflammation of some branch veins), which is not as nice. As with most medical procedures, find a doctor you trust, ask a lot of questions, and take recommendations. You are doing to your doctor because he or she is an expert and knows what will be best for you.
VenaSeal reduces discomfort and recovery time. An adhesive seals the vein only with one needle stick for numbing purposes, and it is not necessary to use compression stocking after the procedure like with the thermal energy more traditional treatment options. Comparing to heat procedures VenaSeal system experience is less painful and less trauma or bruising. Some potential risks include allergic reaction to the adhesive, and phlebitis among others.