Mouth cancer refers to cancer that develops in any of the parts that make up the mouth. Where Can Mouth Cance Occur? • Lips • Gums • Tongue • Inner lining of the cheeks • Roof of the mouth • Floor of ...

Medically reviewed by Edmund Khoo, DDS Key Takeaways A bump on the roof of the mouth is usually caused by a minor condition, like a canker sore.Oral cancer on the roof of the mouth, though rare, is ...