answered 7/14/2008 My Dog Has A Swollen Stomach And A Puss Type Of Liquid Coming Out From Her Behind. Her Hind Leg Also Seems Weak And Appears To Buckle. What Is Wrong? My dog was doing that and if she isn't fixed then she could have an infected uterus. They had to do surgery on her to take the uterus out. Get the dog to the vet ASAP.
