Cancers are small sores that appear on the inside of the lips, gums, or tongue. They cause severe pain and difficulty eating. The main causes are:
Nutritional Deficiency: Deficiency of vitamin B12, iron, and folic acid in the body is the main cause of canker sores. Lack of nutritious food affects the health of the skin inside the mouth.
Stomach upset and indigestion: People with digestive problems and constipation are more likely to develop canker sores. Increased acidity in the stomach can cause canker sores inside the mouth.
Wounds and carelessness: Hitting your teeth with a toothbrush or accidentally biting your cheek while brushing can lead to sores. Also, hitting the sharp parts on the sides of your teeth can cause canker sores.
Excessive mental stress: Stress and lack of sleep affect the body’s immune system. This leads to the growth of bacteria in the mouth and the formation of mouth ulcers.
Allergies to certain foods: Eating foods that are too spicy or acidic can irritate the soft lining of the mouth. For some people, foods like chocolate, coffee, and eggs can cause mouth ulcers.
