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Mouth Ulcers

Mouth Ulcers


What you need to know about
Mouth ulcers | Canker Sores |  Aphthous Ulcer

One kind of mouth pain is mouth ulcers, also known as a canker sore and aphthous ulcers. Although they are not contagious, they can be uncomfortable and painful. Stress, acidic meals, and minor oral injuries are some of the things that create canker sores. In-store or prescription gels, ointments, and rinses are available as treatments. Canker sores often disappear in two weeks even without therapy.

Mouth ulcers are tiny, shallow ulcers that develop in the mouth’s lining. A canker sore initially appears as a red-bordered, white or yellowish mouth sore. They typically have a diameter of less than one millimetre, although they can get as big as one inch or half an inch.

Canker sores can appear on the tongue, gums, roof of the mouth, inside of the lip, or beneath the tongue. They can hurt, and frequently make talking and eating uncomfortable.

Mouth ulcers come in two different forms:

  • Simple Mouth ulcers: These can last up to a week and appear three or four times a year.
  • Complex Mouth ulcers: These are less frequent and more frequently happen in those who have already had them.

Are Mouth ulcers an STD?

No, they aren’t at all contagious. Herpes or any other form of sexually transmitted disease is not a mouth ulcer. Therefore, you cannot share them through kissing or other forms of intercourse.

Are Mouth ulcers and cold sores the same thing?

No. These lesions are not the same even though they are frequently mistaken for one another.

Herpes simplex virus type 1 (HSV-1) or type 2 is what causes cold sores, often known as fever blisters (HSV-2). Since viruses are the cause of cold sores, kissing or another intimate physical contact, such as oral sex, can spread the virus that causes them. Cold sores are fluid-filled blisters that can develop in your mouth or genitalia in groups.

On the other hand, canker sores are not infectious and are not spread through contact.

Who is affected by Mouth ulcers?

Canker sores can appear on anyone. But teens and people in their 20s are the most likely to have them. Canker sores are more common in women and those who were allocated female at birth (AFAB) than in males and those who were assigned male at birth (ABAM). This might be brought on by hormonal shifts, according to experts.

How common is this condition?

Canker sores are relatively common. 20% of people in the U.K. have experienced a canker sore at least once in their lifetime.

Symptoms of Aphthous Ulcer

Typical signs of a canker sore include:

  • One or more mouth sores that are uncomfortable. Your tongue, the inside of your lips, the inside of your cheeks, or the roof of your mouth may develop these ulcers.
  • Sensations of burning or tingling.
  • Small, spherical ulcers with a red border that are white, grey, or yellow in colour.

In extreme instances, you might also encounter:

  • Fever.
  • Physical lassitude.
  • Lymph nodes with swelling.


During a physical examination, your healthcare professional can identify canker sores. In order to determine whether a vitamin shortage or another condition is the root of your ulcers, they may also advise a blood test.


Why some people are more prone to developing mouth conditions such as ulcers is a mystery to experts. However, a variety of factors, such as the following, have been found to be ulcer-causing:

  • Stress.
  • Damage to the mouth’s inside.
  • Meals that are acidic, like citrus fruits.
  • Ibuprofen is one example of a nonsteroidal anti-inflammatory medication (NSAID).
  • Dental devices like ill-fitting dentures or braces.

Immune system disorders, such as the following, can cause complex canker sores to appear in patients:

  • Lupus.
  • Behcet’s disease.
  • Celiac disease.
  • Ulcerative colitis.
  • Crohn’s disease.
  • AIDS.

Nutritional deficits in vitamin B-12, zinc, folic acid, or iron may also be associated with mouth ulcers.


You can encounter more severe side effects, such as discomfort or pain when speaking, cleaning your teeth, or eating, if your canker sore does not go away in a few weeks. fatigue. externalising ulcers around your mouth.

When to call a doctor

In the event that you encounter extraordinary huge Mouth ulcers. Sores that recur or have frequent outbreaks, when new ones appear before old ones have healed. For persistent sores that remain for at least two weeks consult your doctor.

You should make an appointment with your doctor if you have canker sores that:

  • Start spreading.
  • Are extraordinarily big.
  • Continue for more than two weeks.
  • Interfere with regular activities such as eating and drinking.
  • You have a high fever in addition to them.

Find a local doctor.


To treat your canker sores, you may use over-the-counter or prescription medications. Your doctor might suggest one or more of these treatments for canker sores:

Your healthcare professional can suggest certain vitamins or supplements if you have canker sores that are the result of nutritional inadequacies.

Your healthcare practitioner might advise cauterization for really bad canker sores (burning the affected tissue). This can sanitise the region, lessen discomfort, and hasten recovery.

Click here for 18 Home Remedies for Mouth Ulcers

How long do the sores last?

Even without therapy, the discomfort from canker sores often gets better in a few days, and the ulcers usually disappear in two weeks. Make an appointment with your healthcare practitioner if your canker sore persists for longer than two weeks.


There is no guaranteed method to stop canker sores. But you can take a number of steps to lower your risk, including:

  • Avoid foods that are acidic, salty, or spicy.
  • Maintain good dental hygiene. Use a soft-bristled toothbrush twice daily, and floss once each day.
  • Your healthcare professional should be consulted for any dietary deficits.
  • Try mindfulness and meditation as methods of stress reduction.


There are many over-the-counter medications that can cure Mouth ulcer symptoms, such as rinses and topical ointments.

Make an appointment with your healthcare practitioner if your canker sores are unusually large or if your symptoms are affecting your daily life.