The Chow Chow is a sturdily built dog, square in profile, with a broad skull and small, triangular, erect ears with rounded tips. The breed is known for a very dense double coat that is either smooth or rough. The fur is particularly thick in the neck area, giving it a distinctive ruff or mane appearance. Chow Chow with dark brown coat. A Chow Chow cream coat, the only dog breed with this distinctive bluish color in its lips and oral cavity. A Chow Chow puppy. The Chow Chow is a sturdily built dog, square in profile.
This could support a hormonal link, since canker sores also tend to occur among women during menstruation. Physical trauma such as accidentally biting the inside of your cheeks, a reaction to hot foods or beverages, or cuts made inside the mouth by braces or dental work can precede the appearance of a canker sore.
By Mayo Clinic Staff. The precise cause of canker sores remains unclear, though researchers suspect that a combination of factors contributes to outbreaks, even in the same person.Possible triggers for canker sores include: 1  A minor injury to your mouth from dental work, overzealous brushing, sports mishaps or an accidental cheek bite. Inflammatory bowel diseases, such as Crohn's disease and ulcerative colitis. 2  Behcet's disease, a rare disorder that causes inflammation throughout the body, including the mouth. 3  A faulty immune system that attacks healthy cells in your mouth instead of pathogens, such as viruses and bacteria.