Apr 1, 2024 · Mouth sores are lesions on any of the soft tissues of the mouth. They are usually minor irritations but may be more serious. Learn about causes and treatments.

Jun 6, 2023 · Mouth ulcers are small sores that form on your gums, lips, tongue, inner cheeks or roof of your mouth. They’re usually not dangerous, but they can be uncomfortable.

Mar 6, 2026 · Mouth sores appear on the bottom lip, inner cheek, roof of the mouth, and gums. See photos of 19 types of sores, and learn about their symptoms and causes.

Jun 24, 2025 · Sores, painful gums, bad breath -- what's going on in your mouth? Find out with WebMD's slideshow of the most common mouth problems.

Mouth Sores and Inflammation - Learn about the causes, symptoms, diagnosis & treatment from the Merck Manuals - Medical Consumer Version.

Mar 25, 2026 · Find out what a mouth sore is and how to treat one. This article also provides detailed information on the types, causes, and symptoms of sores in your mouth.

Apr 22, 2025 · Canker sores can be a real pain in the mouth, but you can relieve discomfort and speed up healing. Learn what canker sores look like and how to get rid of them.

Jan 8, 2026 · In this article, learn about the possible causes of mouth sores as well as the treatment options.

Nov 13, 2025 · Mouth ulcers are painful sores that can appear anywhere inside of your mouth, including the gums, tongue, roof of mouth, inner cheeks, or lips. Most mouth ulcers are common, …

Oct 13, 2025 · Sores on your mouth, lips, tongue and inner cheek are often caused by viral infections or minor injuries.