How old is the dog. It could also be caused by DM or neurological problems with the spine. If the tail is going dead, it will start out as a prickly sensation like when you hit your funny bone or a gradual numbing sensation that will cause the dog to bite the tail trying to relieve the feelings in the tail. My first GSD started biting her tail about mid to lower section when she was about 10. She would get it pretty raw and if I taped it she would get it off when I was at work. This went on for about six months. Then I can home one day and she had "eaten" about half of her tail...starting from the midsection on down...it was gone so I assumed she ate it. I took her to two vets and they both recommended amputating the tail off to about 2 digits from the croup area. She was a long coat so her butt after the surgery looked like an aussie butt! She was very happy, never missed her tail and I think she felt relief from all the tingling sensations. Never had any problems after that. She lived to be 12 1/2. Kay Springer www.showboatgsd.com In a message dated 12/6/05 1:34:09 PM, cnnpmm2@xxxxxxxxxxxxx writes: << Karen Wrote I have a health question. A colleague was telling me about a gsd that = had=20 some behavioral (or neurological) disorder where he was so anxious he chewed=20 on his own tail. They were having to amputate the tail. The claim is = that this disorder is "common" in the gsd. Is that accurate? >> ============================================================================ POST is Copyrighted 2005. All material remains the property of the original author and of GSD Communication, Inc. NO REPRODUCTIONS or FORWARDS of any kind are permitted without prior permission of the original author AND of the Showgsd-l Management. ALL RIGHTS RESERVED. ALL PERSONS ARE ON NOTICE THAT THE FORWARDING, REPRODUCTION OR USE IN ANY MANNER OF ANY MATERIAL WHICH APPEARS ON SHOWGSD-L WITHOUT THE EXPRESS PERMISSION OF ALL PARTIES TO THE POST AND THE LIST MANAGEMENT IS EXPRESSLY FORBIDDEN, AND IS A VIOLATION OF LAW. VIOLATORS OF THIS PROHIBITION WILL BE PROSECUTED. For assistance, please contact the List Management at admin@xxxxxxxxxxxx VISIT OUR WEBSITE - http://www.showgsd.org ============================================================================