A mouth ulcer is a painful and typically small lesion that develops in the mouth. Discover causes, how it compares to a cold sore, prevention tips, and more.

Recurring mouth ulcers can be a warning sign for underlying health issues. From nutritional deficiencies to chronic diseases, stay informed about 5 potential health problems linked to frequent ...

Mouth ulcers of more serious connotation. Skip to main content. Thank you for visiting nature.com. ... Behcet's syndrome is a chronic, sometimes life-threatening disorder characterised mainly by: ...

Early detection of mouth cancer can be the key to effective treatment and a better prognosis. Yet many people remain unaware ...

Mouth sores can be a symptom of lupus or a warning sign of a lupus flare. They may or may not be painful, but they still need medical treatment. Lupus is a chronic autoimmune condition that causes ...

This may lead to chronic ulcers that come with a small degree of burning pain. Heat in the body is often linked to mouth ulcers, too. Internal heat is created, for instance, when phlegm and ...

My son age 8 has suffered from almost constant mouth ulcers since age 5, despite a healthy diet. I have read that insufficient white blood cells may be to blame. If so, what do we do? He also suffers ...

Lichen planus, a chronic condition that causes an itchy, inflammatory rash in the mouth or on the skin. Chronic canker sores, which have a red, flat edge and white or greyish patches surrounding them.

A dentist has warned that a common issue in the winter could signal a serious and deadly disease. According to the expert, a persistent mouth ulcer could be a telltale sign of oral cancer. As ...

A common winter complaint could be a sign of mouth cancer, according to a dentist. Mouth ulcers are common during the colder weather, but it could be something more serious such as oral cancer or ...