I have a doe who is probably right around 9-10. We bought our house in May 2001 and got goats soon after, so she would have been that year sometime or early next. Anyway, she is just the same as always, active running around, eating well, not skinny or anything but is losing her hair. I did not realize it was like that (hubby usually takes care of the goats) and they are usually in the yard relaxing when I get to see them so not close up. She has much thinning hair over her back, hindquarters and back of where neck meets the shoulder. I am not sure if its from all the flies and mosquitoes (they are bad right now) and she is just rubbing a lot and thats why or if its just something from old age. I tried to look up aging symptoms in goats and got nowhere. I am really leaning toward aging issues, but what else could it be? I did not see lice or mites but have never had a problem in all the 10 years we have had goats, and no one else looks like this. If there is something I could try to narrow down the potential problem, it would be helpful. They get sweet feed and grass hay/alfalfa mix and loose mineral. Three of the other goats in my herd of 5 SHOULD be pregnant and due hopefully next month.