Baby Dental – What is a Canker Sore
Canker sores: which are also called aphthous ulcers, are small, shallow lesions (can appear as a white or yellow open wound surrounded by inflamed tissue) that develop on the soft tissues in your mouth or at the base of your gums. Unlike cold sores, canker sores don’t occur on the surface of your lips and they aren’t contagious. Canker sores occur only inside the mouth, on the tongue or the insides of the cheeks, lips or throat. People may notice a tingling or painful sensation in tissue on and near a canker sore. Eating, drinking, and speaking can exacerbate these symptoms.
