While nobody can ever accurately predict the future, we certainly can look at past experience. Herpes is a large family of viruses, which also includes the chicken pox virus, and one of the hallmarks of these viruses is that they can live for the rest of your life in the nerve roots and come out at certain times of stress, like colds (thus "cold sores" or "fever blisters") or other illness or injury. The type of herpes virus usually found in the genital and oral locations is herpes simplex, and it usually affects the mucus membranes, although other areas can be affected as well. As long as you don't have an outbreak of herpes at the time of surgery, especially anywhere near the breasts, it is unlikely that this type of surgery would lead to an outbreak of genital herpes simplex based on past experience with this. You would be more at risk for an outbreak of shingles, or herpes zoster, coming from latent chicken pox virus than herpes simplex. I personally have never seen an outbreak of genital herpes attributable to breast augmentation surgery, but you should check with your surgeon, and if there is any concern at all on your part or his/hers, then it is very simple to go on a course of prophylactic antiviral medications just to be on the safe side. Good luck.