Almost everyone has experienced thrush, and often thrush appears suddenly. There are some things that we can unknowingly actually cause canker sores. The cause of canker sores is sometimes difficult to ascertain. Even so, there are various factors that are known to trigger this condition, ranging from lack of nutritional intake, consumption of acidic or spicy foods, smoking habits, to the use of certain drugs. In addition, there are also some things that you do not realize can cause canker sores. Causes of Sprue that are often not realized Below are some things that can cause the appearance of canker sores: 1. Brush your teeth too hard Brushing your teeth too hard can be a cause of canker sores. The reason is, when you brush your teeth too hard or use a toothbrush with rough brush bristles, you can injure the gums and the surface of the oral cavity wall. This wound can lead to the appearance of thrush. 2. Bitten wound Lips, tongue, or the inside of the cheeks can sometimes be...