Mega can be inherited and it can also be congenital meaning that something was just not right when the puppy was developing. I just put an eight week old puppy down because of it from my most recent litter....not fun. If you grow up a puppy with mega it should be fixed and never used for breeding. Amy Greenhut Justrock German Shepherds Gen Oak Leopard Tortoises &  Tortoise Rescue Behold The Turtle,  He Makes Progress Only When He Sticks His Neck Out A Quote By James B. Conant ----- Original Message ----- From: edwinx@xxxxxxxxxxx To: "showgsd-l" <showgsd-l@xxxxxxxxxxxxx> Sent: Saturday, June 26, 2010 6:19:21 PM GMT -05:00 US/Canada Eastern Subject: [ SHOWGSD-L ] Megaesphagus....NOT hereditary? Having had this problem every now and again, a friend called me today and stated all but one of her pups had been diagnosed ( barium ex-ray) with the condition...I was always under the impression that the condition was hereditary....well after reading about it , most of my reading sources stated that it was congenital, and to be more specific, idiopathic congenital....which basically means the reasons for acquiring the disease are unknown!...well is this good or bad news?....if it's not genetic, it's not predictable.....comments , answers , questions?...I'll tell you this :every time I have a litter, and over the past few years I have had very few, I'm always looking for pups throwing up food.....not a fun disease...Ed ============================================================================ POST is Copyrighted 2010.  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@xxxxxxxxxxx VISIT OUR WEBSITE - http://showgsd.org NATIONAL BLOG - http://gsdnational.blogspot.com/ ============================================================================ ============================================================================ POST is Copyrighted 2010. 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@xxxxxxxxxxx VISIT OUR WEBSITE - http://showgsd.org NATIONAL BLOG - http://gsdnational.blogspot.com/ ============================================================================