I would say you hafta weigh up the pros and cons.
I have had two hernia surgeries. (Both in the middle of weight loss)
You have to understand that the hernia could get srangulated - If this happens - You will be rushed into hospital - as I was - And have your hernia fixed as an emergency. A strangulated hernia can kill.
The second time I (apparently) Just had fat poking through the hole but I didnt find that out till afterwards, but I went in as I was worried it might strangulate again and was scared of that....
I would have to ask the Doctor what is protruding - and use that information to make my decision on. If it is your innards, get it fixed, if it is just fat - Then you can wait. But having been through two hernia surgeries - If it were me - I would get it fixed as when it gets stuck - It is a very painful thing, whilst I was in pain - I was throwing up white stuff (apparently it had no smell at all - Just white)
Good luck