 [ Symptoms ] does a vasectomy protect against hivaids and other sexually transmitted diseases [ Disease ] sperm washing is an option for you that way it will not pose much of a risk to the mother however the most important aspect of whether the fetus would contract hiv is the hiv status of the mother not the father so as long as she is negative you can go ahead with sperm washing and really make sure both mother and fetus will be ok many couples have healthy babies despite one or both parents being hiv positive  no