Mouth ulcers also referred to as canker sores, are painful lesions that can appear inside the cheeks, lips, or at the gum line. It is the degeneration of the tissue lining of the mouth, to put it scientifically. There’s no need to worry because they go away in a week or two and are not contagious. However, if any of these do not go away within the allotted period or if they’re substantial and extremely painful, it is advised to contact a dentist. When the discomfort is particularly bad, it can be unpleasant to eat, speak, or drink.

Causes of Mouth Ulcers

Mouth Ulcers are most common in women, children, and people who have a family history of the condition. Even if the precise aetiology of mouth ulcers is unknown, the following variables may contribute to the condition:

  • 1. Trauma or injury brought on by vigorous brushing, sports injuries, mishaps, or dental work
  • 2. Fungal or bacterial infections
  • 3. Another factor that kids are particularly susceptible to is stress.
  • 4. Consuming acidic foods or beverages
  • 5. Hormone adjustments
  • 6. Rinses for the mouth that contain sodium lauryl sulphate
  • 7. Vitamin B-12, zinc, folic, and iron deficiencies

Types of Mouth Ulcers

There are numerous types of unpleasant and agonizing sores. The most typical of these are:

Papular Sores

These little white spots have red borders. Being non-contagious, the source or reason is unknown.But trauma is frequently cited as the primary contributing element. They might need a full week or a half to recuperate completely on their own. Avoid consuming anything hot, acidic, or lemony.

Common Cold

These develop outside the mouth, typically on the lips, in a group of red, elevated blisters. Liquid is contained in them, and if they break, the liquid may leak out. Despite the fact that they are quite contagious, they recover by themselves in approximately a week


On soft, wet tissue inside the mouth, a yeast infection manifests itself. An area of white with a red foundation can be seen there. Fungus is the origin of these sores, and individuals with weakened immune systems, compromised health, or people with diabetes are more susceptible to acquiring them. 


Rough white patches are present throughout the mouth. Despite the fact that they are neither painful nor communicable, these can raise more serious issues. A dental professional is recommended in this situation.

Symptoms of Mouth Ulcers

Depending on the cause, a mouth ulcer’s symptoms may include:

  • 1. A painful sore or lesions on the skin that lines the mouth.
  • 2. Skin that is swollen around the sores
  • 3. And difficulties eating or brushing teeth because of the discomfort.
  • 4. Foods that are salty, spicy, or sour irritate the sores.
  • 5. Decrease in appetite.

Lips, cheeks, the edges of the tongue, the hard palate, the rear of the mouth’s roof and the area around the tonsils are among the softer mouth surfaces where aphthous ulcers typically develop. Usually, these ulcers are hardly bigger than 5mm. Multiple aphthous ulcers can form at once, and occasionally these ulcers are connected.

Treatment of Mouth Ulcers

The absence of treatment is due to the fact that mouth ulcers heal on their own. Please consult your dentist for various treatments if the ulcers are large and terribly painful, though:

  • 1. Rinse with baking soda and salt water.
  • 2. Use topical painkillers like Orajel or Anbesol.
  • 3. Canker sores can be treated with ice or cold water.
  • 4. Applying used tea bags to the wounds,
  • 5. Savour a cup of chamomile tea.
  • 6. Another nice choice is the milk of magnesia, which is suggested for use on mouth ulcers.

How are mouth ulcers diagnosed?

A visual examination will enable the doctor to identify oral ulcers. Your mouth, throat, and lips may be examined, and the healthcare practitioner may perform tests to rule out other medical disorders if you have severe and frequent mouth ulcers. Doctors can do biopsies and other tests if they have a suspicion that you have cancer.

  • 1. The virus
  • 2. A lack of certain vitamins or minerals
  • 3. A hormonal condition
  • 4. You have an immune system issue
  • 5. A severe crack

Though it may resemble a mouth ulcer, a malignant lesion cannot be treated and will not go away on its own. Canker sores and oral cancer can both present with symptoms like painful ulcers and neck swelling. But specific symptoms, such as these, can often be used to diagnose oral cancer, including:

  • 1. Bleeds from the gums or mouth
  • 2. Tooth decay
  • 3. Having trouble swallowing
  • 4. Earaches

In order to rule out mouth cancer as the reason, consult your doctor as soon as you have these symptoms, in addition to those associated with thrush.

When to see a doctor

Consult your orthodontist or oral precision and care if ulcers are preventing you from going about your daily routine or have lasted for more than two weeks.

If it’s thought that you have an underlining deficiency (such as iron, folate, or provitamin deficiency) or an inflammation illness, you can occasionally need blood testing.

You may be required to have biopsies of a portion of the ulceration and some of the interstitium if your oral healthcare professional is unable to identify the source of your ulcerations or if the sores don’t improve after receiving the recommended therapies. During a biopsy, a material sample is obtained for analysis and diagnosis.

Prevention of Mouth Ulcers

In some situations, mouth ulceration can be eliminated by

  • 1. Using a gentle motion to clean your teeth while being careful not to slip.
  • 2. Eating a wholesome, well-balanced diet.
  • 3. Ensuring that the underlying medical issues are effectively managed.

Tips to prevent mouth ulcers

Even though mouth ulcers can recur regularly and can hurt and make it uncomfortable to eat and drink, by taking the right precautions, they can be prevented. The following advice will assist you in preventing the development of mouth ulcers:

Adopt appropriate oral hygiene practices

Making sure you brush and floss correctly will help you keep your mouth free of bits of food that could cause sores to form. As mouth ulcers can be triggered by using toothpaste and mouthwash containing sodium lauryl sulphate, dentists usually advise using soft brush bristles with these products.

Keep an eye on your diet

Because several foods, like chips, nuts, spices, and acidic fruits (grapefruits, oranges, pineapples, etc.), can lead to mouth ulcers. Therefore, the easiest strategy to prevent mouth ulcers in sensitive people is to avoid eating those items.

Eat Healthily

For some, a lack of certain vitamins, iron, etc., can lead to mouth ulcers. Therefore, consuming foods high in vitamins and iron will stop the development of ulceration in such people.

Protect your Mouth

Some orthodontic devices, like braces, have sharp edges that might irritate certain mouth areas and result in mouth ulcers. For help covering or filing off such sharp edges, see your dentist.

Reduce your Stress Levels

Mouth ulcers can occasionally be linked to anxiety; thus, exercising stress-reduction techniques like meditation or yoga can help prevent the development of stress-associated ulcers.

Frequently Asked Questions:

What is the reason for mouth ulcers?

You can try to avoid things like biting your cheek’s interior to prevent the majority of single mouth ulcers from occurring. Braces, ill-fitting dentures, abrasive fillings, or a pointed tooth. Wounds or burns caused by eating or drinking, such as those caused by hot or hard foods.

I have a mouth ulcer. What should I do?

  • 1. Use a topical anaesthetic available over the counter, like Orajel or Anbesol.
  • 2. Take in a lot of water.
  • 3. To maintain the cleanest mouth possible, practise good dental hygiene.
  • 4. Rinse your mouth out several times a day with warm seawater.
  • 5. As the ulcer heals, stay away from hot and spicy foods.

How can a mouth ulcer be cured the fastest?

  • 1. Compressing black tea. Black tea contains tannins, which help speed up healing when placed directly on a canker sore 
  • 2. Gargle with salt water.
  • 3. Cloves in the mouth.
  • 4. Milk of magnesia, gargle.
  • 5. Eat organic yoghurt.

Are mouth ulcers caused by stress?

Small sores called mouth ulcers might appear on your lips, inner cheeks, gums, or tongue (roof of the mouth). Numerous things, such as minor wounds, hormone fluctuations, and emotional stress, can cause them.

How long do mouth ulcers last?

The majority of the time, mouth ulcers heal on their own within 10 to 14 days. Schedule a visit with your healthcare practitioner if your mouth ulcer persists for more than three weeks.

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