Thank you for the query.
If the hole which creates the hernia
is small, the risk of getting stuck something there (intestine) is higher than with the big hernia. So sooner or later this hernia will have to be repaired. But as long as there is no symptoms, no abdominal pains, vomiting
, lack of gas and stool, you may wait a year or so. It wont change anything with this hernia, and it will let your son to have surgery in older age. But if he starts having any symptoms or a painful lump will appear, this will be the point you should not wait anymore.
Hope this will help.