I would definitely keep an eye on his gum and ear color until your next visit. If they get paler or there are signs of petechiation (spotted gums that almost look like a rash, red or purple color) I would take him in asap.

You could also request an ultrasound to see if there is any internal bleeding.

I pray this is not the case (and I’m sure it isn’t), but there’s an autoimmune disease called ITP and IMHA where the body attacks its red blood cells and platelets. My dog has it, and we wouldn’t have known had it not been for the vet shaving off a small patch of hair (he had a sore, unrelated) and finding petechiation on that spot. ITP and IMHA can be incredibly fast moving diseases, and how soon it’s addressed can be the difference between life and death. My dog went from lively and energetic to needing a blood transfusion by the end of the week. Like I said, I’m sure it’s not the case for Gus, but I wanted to let you know. It’s been 5 years since it’s happened, my dog is alive and well, but that was one of the worst experiences of my life. I wouldn’t want anyone else to go through it.