Also known as: Oral Ulceration
Mouth sores are painful lesions on the soft tissues inside the mouth. Most resolve within 1-2 weeks but recurrent sores may indicate nutritional deficiencies.
Mouth sores affect up to 20% of the population at any time. The two most common types are canker sores (not contagious) and cold sores (caused by herpes simplex, contagious).
Recurrent sores can indicate nutritional deficiencies, immune disorders, or gastrointestinal conditions like celiac or Crohn's disease.
Most mouth sores heal within 1-2 weeks without treatment, but persistent sores warrant evaluation.
There are several possible reasons you may be experiencing Mouth Sores. Here are the most common ones.
Small ulcers with white centre and red border inside the mouth, triggered by stress, acidic foods, or trauma.
Fluid-filled blisters from herpes simplex virus, appearing on or around the lips.
Accidental biting, sharp foods, or dental work can cause localized ulcers.
Iron, B12, folate, or zinc deficiencies cause recurrent mouth sores.
These approaches may help manage mouth sores at home. Always consult a healthcare provider if symptoms persist or worsen.
Half teaspoon salt in warm water, rinse several times daily.
Skip spicy, acidic, or rough foods until healed.
Benzocaine gels numb pain and protect sores.
Visual examination; persistent sores may require biopsy. Blood tests check for nutritional deficiencies.
See a doctor if sores last over 3 weeks, are unusually large, spread rapidly, or you have difficulty swallowing.
Steps you can take to reduce the likelihood of experiencing mouth sores.
Good oral hygiene
Avoid trigger foods
Manage stress
Adequate B12, iron, and folate intake
Most heal within 1-2 weeks. Sores lasting over 3 weeks need evaluation.
Canker sores are not. Cold sores are contagious when blisters are present.
Iron, B12, folate, and zinc deficiencies can all cause recurrent ulcers.
This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical condition.