Just this week my oldest dog had to be put down due to anal gland cancer. A couple days later I noticed my Sassy dog licking her butt like crazy. I took her to the vet and it turns out she has a ruptured anal gland. She had to be sedated and treated for that. When I went to pick her up the next day I brought Jack along to have his butt checked out, since there seemed to be a trend. Thankfully his glands were okay.
I had no idea that Sassy's glands were impacted before she started attacking her butt. Her stools were normal and the licking only went on for a couple days before she was treated.
I've read that a low fiber diet may lead to gland problems. Has anyone tried a high fiber diet to prevent this? Would anyone have any suggestions? I'm a bit paranoid about my dogs' butts now.