If your American Shorthair or other feline friend has bad breath then it could be a sign of a dental related illness. Contact your vet to set up a wellness exam to determine the source of the bad breath. American Shorthairs can develop infections such as gingivitis and other forms of periodontal disease in similar ways to people. In fact, research shows that more than 80 percent of pets (this includes American Shorthairs) three years and older develop some form of gingivitis. Common signs of gingivitis in American Shorthairs include red or swollen gums. The inflammation is especially present on the side of the gums facing the inner cheeks. Bad breath, which is known as Halitosis is another sign of gingivitis. If your American Shorthair appears to have a lot of plaque or calculus build-up on the surface of the teeth this could also indicate gingivitis. If you’re not sure about the symptoms call your vet Metairie LA.