My 23 yr old son had a first seizure a month and a half ago eeg, mri, cats can all fine blood work fine why are chances he will not have another?

Get the crystal ball. How frightening for you and your son! but I am so happy to hear that the mri, ct, and blood work are normal; what a relief. Sometimes medications can induce seizures; i imagine this has been ruled out. While this is personal, i don't mind sharing that i had a single seizure while in residency training - back in l985. None since, and i'm a very busy, active physician. Good luck to you and your son.