
There is a slight difference between a full hernia, in which you can get intestines getting trapped, which is a severe condition, and in which case an operation is inevitable, and a late closure. A late closure will in fact disappear, if you keep pushing the fatty tissue back every day. In the end, as it closes, the little "blob" will stay inside for good. If you do nothing, a little bit of tissue will be trapped on the outside. This will not mean anything to the dog itself.
Although, if it's a bitch meant for breeding, I'd choose another one. It's thought to be heredetary, and could be a problem if a bitch carried a big, heavy litter.
HTH, Karen