There are many types of sesiures and many things that can triger them. Some trigers may be only a reaction and if you find the cause then your ok or it could be late onset. My son is epeliptic and has 3 different types. Grand Mal, complex parital, and absent. If he wet him self it was likely a Grand mal but there are other types and it could also be visual migrains but doubtfully since he convulsed. Good luck!