Cold sores occur on the outside of the mouth and are caused by the herpes simplex virus. Canker sores are blisters inside the mouth that can occur due to injury, nutritional deficiencies, and ...

This is a rare autoimmune skin disorder that occurs when your immune system starts attacking healthy epidermis cells (the top layer of your skin). Pemphigus can manifest itself as blisters and sores ...

Blisters are small, painful sacs of fluid that appear on your skin. Different factors can bring on blisters. You’ve probably developed a blister from a shoe rubbing against your skin — that’s one ...

A canker sore—a painful white ulcer inside the mouth—might be brought on by stress. Or the wrong toothpaste. Or certain foods: tomatoes, peanuts, cinnamon. Or an iron deficiency. Or an allergy. Or a ...

Hand, foot, and mouth disease is a viral illness known for its rash, mouth sores, and slightly raised red spots or white blisters on the palms of one's hands and the soles of one's feet. These bumps ...

Canker sores are painful ulcers that form inside your mouth. The sores can affect daily habits like eating and drinking. Experts recommend key practices like regular teeth brushing and flossing to ...

Canker sores are inflamed spots in your mouth that cause pain and typically heal within a couple of weeks. Oral cancer may cause raised spots or patches in your mouth that worsen over time. Share on ...

Sarah Bradley is a writer with six years of experience creating personal essays, reported features, and content related to health and parenting topics. Jonathan B. Jassey, DO, is a private ...

Lip ulcers are cold sores, and canker sores are a type of mouth ulcer. Both can cause pain and discomfort but typically clear up without medical treatment. Lip ulcers are another name for cold sores.

Medically reviewed by William Truswell, MD Low vitamin B12 makes it hard for your body to renew cells in your mouth, leading ...

Mouth cancer can appear on the lips or anywhere in the mouth, including the tissues inside the cheeks, the tongue, and the gums. Mouth cancer may look like red, gray, or white patches of skin, thick ...