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.
These shallow, painful mouth ulcers often occur in susceptible individuals during times of stress, infection, or changes in immune status. Certain medications (for example, methotrexate [Trexall]) can cause canker sores as well as deficiencies in some B vitamins (1, 2, 6, and 12), iron, folic acid, and zinc.