Found out the other day my yearling filly Lyric has a umbilical hernia. I did some research and these types of hernias are measured by fingers. To me, it felt like 2 fingers, but the vet said only 1. I'm curious as to my options. Is this something that she can outgrow? Or is surgery my only options (as my vet has told me.) She's scheduled for surgery next Wednesday, but if I have another option that doesn't require surgery, I sure would like to try it. I'm also told by her breeder to just leave it alone. That it will go away as she ages. Btw..I couldn't see the hernia. I just happened to feel the "hole" in her abdomen as I was rubbing on her the other day. She will have the surgery if that's what she needs, but I also don't want to be jumping the gun if it's something that could possibly heal on its own.
Any thoughts, opinions, advice?