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Causes for ulcer
Causes of Mouth Ulcers

You may have minor mouth ulcers when you accidentally bite your cheeks while eating, and sometimes while brushing. Mouth ulcers may also commonly occur when you have braces. This kind of mouth ulcers do not indicate any serious complications and may heal within a week or two. However, the cause of mouth ulcers is not clearly known.

The other common causes of mouth ulcers include –

  • Stress and Anxiety – You may have mouth ulcers due to the severe stress and anxiety of your daily lifestyle. Stress stimulates the production of free radicals that can damage the mucus membrane lining your mouth.
  • Certain toothpaste additives – You may find ulcers in your mouth after using certain toothpastes. This is because you may be allergic to the additives such as sodium lauryl sulphate present in certain toothpastes.
  • Food substances – Very hot drinks such as coffee or very hot foods may damage the taste buds and the inner lining of your mouth resulting in mouth ulcers. Acidic foods such as citrus fruits, strawberries and tomatoes may damage the lining of your mouth resulting in mouth ulcers.
  • Vitamin and mineral deficiencies – Vitamin B12 and iron are essential to maintain the integrity of mucous membrane. They also help in the maturation of red blood cells. Therefore, when you have of these vitamin and mineral deficiencies, you may have mouth ulcers. The deficiency of zinc may also result in mouth ulcers.
  • Infections – Infections of gums such as gingivitis are one of the major factors that trigger mouth ulcers. Some viral infections such as herpes simplex infection and bacterial infections may also cause mouth ulcers. These mouth ulcers will subside when the infection is properly treated.
  • Hand, foot and mouth disease – This is a viral illness, which is common in infants and children. Mouth ulcers are common, if your child has hand, foot and mouth disease.
  • Inflammatory bowel diseases– If you are diagnosed with any one of the inflammatory bowel diseases such as Crohn’s disease, the destruction of cells and tissues in the stomach occurs. This results in redness and swelling in the affected part of the digestive system and increases your chances to get mouth ulcers.
  • Immunodeficiency – If you are having any medical condition that destroys your immune system such as HIV or lupus erythematous or Behcet’s disease, then you are at high risk for developing mouth ulcers. However, proper hygiene and mouth care can decrease your risk for developing mouth ulcers.
  • Hormonal changes – Hormonal changes that occur during your menstrual period also increase your chances of getting mouth ulcers to some extent.
  • Medications – Certain medications such as aspirin, medications that treat hypertension, sulfa drugs and chemotherapy medications may increase your chances of getting mouth ulcers.
  • Smoking & Paan, Tobacco – Smoking , chewing paan and tobacco may damage the mucus membrane lining your mouth, leading to mouth ulcers. Dental cuts & injury - Any cuts of injury due to dental procedures, vigorous brushing , or exposure to sharp edges can lead to ruptures which may turn into mouth ulcers