It is not clear why some people are more likely than others to develop canker sores. However, there could be a genetic link, as canker sores tend to run in families in about 40% of cases.

Try to reduce stress, which may trigger mouth ulcers in some people. Vitamin deficiencies may play a role, so eating a balanced diet that contains iron, folic acid, and vitamin B12 may help.

Medically reviewed by Edmund Khoo, DDS A bump on the roof of the mouth can have a number of causes, including canker sores, fungal infections, or bony growths. The bump may be painless or sore.

The condition Behcet’s disease can cause painful, swollen joints, and sores which appear not only in the mouth, but also on the genitalia. Ulcers can also be a sign of an impaired immune system.

Canker sores are painful ulcers that occur in the mouth, including on gums. Here's a look at how to deal with them. News Sports Autos Entertainment Advertise Obituaries eNewspaper Legals.

The human mouth is a weird place. Canker sores occur in what’s called the oral mucosa, which is doctor-speak for the skin (it’s not actually skin) inside your mouth.

Stefan Schlabe and coauthors present the case of a 51-year-old HIV-positive patient, whose ulcer at the corner of his mouth occurred as the first sign of infection with monkeypox virus ...

Mouth ulcers commonly develop as a side effect of meth use. Here's why they happen, plus tips on treatment and support for stopping meth use.

Canker sores are painful sores inside the mouth. The lesions are oval shaped with a yellow-gray center that a red ring surrounds. Canker sores progress through different stages and typically last ...

Stefan Schlabe and coauthors present the case of a 51-year-old HIV-positive patient, whose ulcer at the corner of his mouth occurred as the first sign of infection with monkeypox virus.