We have to assume your child is susceptible; but, as long as you are receiving safe anesthesia, your baby is not at risk either. Of interest, there are very few reports of infants triggering with MH, even when an individual is later proven to have MH. MH-susceptible baby pigs do not trigger consistently either. There is apparently some protection offered by immaturity. Your baby boy will not be at risk with the epidural or from local anesthesia used for the circumcision.