programming forums Java Java JSRs Mobile Certification Databases Caching Books Engineering Languages Frameworks Products This Site Careers Other all forums. this forum made possible by our volunteer staff, including ...
What are canker sores? Canker sores (also called aphthous ulcers) are different than fever blisters. They are small, red or white, shallow ulcers occurring on the tongue, soft palate, or inside the lips and cheeks; they do not occur in the roof of the mouth or the gums. They are quite painful, and usually last 5-10 days.
My husband gets painful canker sores all the time in his mouth. What's the deal? Thanks, Brittany. Canker sores are small ulcers that develop in the soft tissues of the mouth. They can appear under the tongue, inside the cheeks or lips and at the base of the gums. Doctors donât know exactly what causes canker sores, but they do know there are a number of contributing factors. 1  These include: 2  Having a weakened immune system. 3  Poor nutrition or vitamin deficiencies. 4  Minor injuries to the mouth. 5  Hormones. 6  Even using some toothpastes or mouth washes that contain sodium lauryl sulfate.