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.
Canker sore. In some cases, the exact cause of a canker sore is unknown, but trauma or injury to the mouth or oral soft tissues may be the culprit. Other possible causes are food sensitivities, spicy, salty or acidic foods, vitamin B deficiency, hormonal shifts and stress. Cold sore.