What is Mouth Ulcers?

Mouth Ulcers commonly known as canker sores are painful lesions in the mouth or at the base of the gums or inside cheeks or lips. In scientific terms, it is the loss of tissue lining in the mouth. These are nothing to worry about as they are non-contagious and go away in around a week or two. However, if these are not healed in the period as said so or are large and extremely painful then it is advised to visit a dentist. The pain sometimes can be to the extent that it can make eating, talking and drinking difficult and uncomfortable.

Causes of Mouth Ulcers

Women, children and the one having a family history are most prone to developing Mouth Ulcers. Though the exact cause of Mouth Ulcers could not be known several factors can attribute to the same:

  • Trauma or Injury from hard brushing, sports injury, accidents or dental work
  • Bacterial or Fungal infections
  • Stress can also be a reason and is most common in teens
  • Intake of acidic food or drinks
  • Hormonal changes
  • Mouth rinses which contain sodium lauryl sulfate
  • Lack of vitamins such as B-12, zinc, folate, and iron


Mouth Ulcers do not need treatment as they go away with time. But if the ulcers are large and extremely painful please visit your dentist for treatment options:

  • Rinse with salt water and baking soda
  • Apply pain relief ointments like Orajel or Anbesol
  • Apply ice to canker sores or use cold water
  • Placing old tea bags on the sores
  • Drink cool chamomile tea
  • Milk of magnesia can also be a good option and is advised to place on Mouth Ulcers

How to avoid Mouth Ulcer?

  • Eat a healthy and balanced diet
  • Avoid spicy and acidic food and beverage
  • Brush gently
  • Drink plenty of water
  • Adopt means to reduce stress
  • Have a proper sleep

Types of Mouth Ulcers

The uncomfortable and painful sores can be of various types. The most common amongst these are:

Canker Sores

These are small white patches with red borders. Being non-contagious the reason or cause is unknown but usually, trauma is the most common reason. They heal on their own with the time that might take a week and a half. Spicy, acidic and citrus food should be avoided.

Cold Sores

These appear in a cluster of red, raised blisters outside mouth especially lips. These are filled with fluid which can break making fluid to leak. Though they are highly contagious, yet they heal on their own in an about a week.


It is a yeast infection which appears inside the mouth on soft and moist tissue. It appears as a white patch with a red base. The cause of developing such sore is fungus and people with a weak immune system or people with poor health or diabetic patients are more prone to these sores. If the case of sore is candidiasis, then one should seek advice from Dental Professional.


These are tough white patches which appear anywhere in the mouth. Though these are not painful or contagious but can have more serious concerns. Therefore, it is advised to visit a Dental Professional in this case.

Frequently Asked Questions

Q.1. Do Mouth Ulcers Lead To Oral Cancer?

Yes, sore mouth ulcers, which do not heal naturally and last for several weeks, can lead to oral cancer. Mouth ulcers can occur anywhere in the mouth but the once that develop under the tongue are particularly alarming. Book an Appointment for such cancer-related ulcer alarms.

Q.2. How Are Mouth Sores Treated?

Mouth sores can be easily treated at home by rinsing the mouth regularly with warm salt water, drinking plenty of fluids, avoiding spicy food and applying an antiseptic gel to the ulcers. Usually, mouth ulcers heal within a week. In case they don’t, consider visiting your nearest dentist.

Q.3. How Long Does It Take To Heal Ulcers?

Mouth ulcers usually self heal within one to two weeks. However, serious and painful ulcers can take up to 6 weeks to heal. If you are prone to mouth ulcers, visit the best dental care near you for immediate relief from painful canker sores.

Q.4. Can One Apply Toothpaste To Ulcers?

Generally, toothpaste can help to treat mouth ulcers. However, for people who are prone to mouth ulcers, toothpaste with high SLS (Sodium lauryl sulfate) may even aggravate ulcers. Hence, it is best to seek advice from a dentist nearby for ulcers that are painful and not self-healing.

Q.5. How Can You Get Rid Of Mouth Ulcers Permanently?

A healthy diet and strict oral hygiene are the secrets to an ulcer free mouth. Mouth ulcers can be caused due to underlying health reasons like Vitamin B12 deficiency and iron deficiency too. Patients prone to mouth ulcers must consult the best dentist near them for a permanent solution.