Canker Sore



The scar of Kanka, also called Aphthous ulcer, is a small and shallow lesion occurring in the soft tissue in the mouth and the base of the gingiva. Unlike a cold wound, oralitis does not appear on the surface of your lip, it is not infectious. They may hurt, but it makes it hard to eat and talk.

The scars of most ulcers disappear in 1 or 2 weeks. If you feel unusually large and painful ulcers or ulcers are unlikely to heal, ask your doctor or dentist.


The wounds of most ulcers are round or elliptical and have a white or yellow center and a red borderline. It is formed in your mouth, above or below your tongue, inside your cheek or lip, the gingival base, or your soft palate. Before erosion actually appears, you may feel a burning sensation or a burning sensation on 1 or 2 days.

There are several types of ulcers, including minor, major and herpetiform scars.

Minor Cancus Scratch

Minor ulcer pain is the most common:

  • It is usually small
  • It is an oval shape with a red side.
  • Scarless healing in 1 to 2 weeks

Main ulcer

The main ulcer pain is not very common:

  • Bigger and deeper than minor wounds
  • Normally it is rounded with the defined rule, but it can have irregular edges if it is very large
  • Can be very painful
  • It took six weeks to heal and may leave a wide range of scars

Herpes like ulcer

Herpes-like ulcer erosion is rare, usually occurs in later stages, but not due to herpes virus infection. Scars of these ulcers:

Pinpoint size
Often it occurs in 10 to 100 ulcerated masses, but it may merge with one large ulcer
Have irregular edges
Scarless healing in 1 to 2 weeks

When going to see a doctor

If you have experience, please consult your doctor.

  • Abnormally large ulcer
  • Recurrent scars, those that develop before the old is healed, or those that occur frequently
  • Persistent pain lasts more than 2 weeks
  • Scratches stretching to the lips themselves (vermillion border)
  • Pain that can not be controlled with self-care measures
  • Extremely difficult meals and drinks
  • High fever and ulcer pain
  • If you have a sharp tooth surface or dental utensil that appears to cause a wound please consult a dentist.


Researchers believe that multiple factors contribute to the outbreak even for the same person, but the exact cause of the ulcer is unknown.

The possible triggers of oralitis are as follows.

  • Dent injuries to the mouth from dental surgery, excessive brushing, sports accident, or accidental cheek bites
  • Toothpaste containing sodium lauryl sulfate and oral cleanser
  • Sensitivity of food to chocolate, coffee, strawberry, eggs, nuts, cheese, spicy or acidic foods in particular
  • Vitamin B-12, zinc, folic acid (folic acid) or iron deficient diet
  • Allergic reaction to specific bacteria in mouth
  • Helicobacter pylori, the same bacterium that causes peptic ulcer
  • Hormonal shift during menstruation
    Emotional stress
  • Also, due to certain conditions and diseases such as the following,


  • Celiac disease, severe bowel disorders caused by sensitivity to gluten, proteins found in most cereals
  • Inflammatory bowel diseases such as Crohn’s disease and ulcerative colitis
  • Behcet’s disease, rare diseases causing inflammation throughout the body including the mouth
  • Immunodeficiency system that attacks healthy cells in
  • the mouth, not pathogens such as viruses and bacteria
    HIV / AIDS suppresses the immune system
  • Unlike cold wounds, ulcer pain is not associated with herpesvirus infections.

Risk Factors

Everyone has the possibility of developing stomatitis. However, they occur more frequently in teens and young adults and are more common in women.

Patients with frequent recurrent ulcerative colitis have a family history of this disease. This may be due to genetic or common factors within the environment, such as specific foods and allergens.


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