Yes, it seems more common than we realize. I have the same problem and it bugs me too.
You have got to go to the doctor. Get your whole family involved if you have to or let me know how I can help. I'm glad you have done your research and endometriosis is serious. It could continue to grow and go to your brain. It's very scarey, don't put your health at risk, … Read more
I agree with the one before me. But, some hamsters we've had still bite at the cage when they have toys. Sometimes so much that they bite their way out.