How common is a mouth sore that does not heal in mouth cancer?

Mouth Sore That Does Not Heal is a very common presentation of Mouth Cancer. The sore may be painful or painless and can occur on the tongue, cheek lining, gums, palate, or other mouth tissue.

Mouth cancer may cause an ulcer, thickened area, red or white patch, bleeding, numbness, or a change in how a denture fits. A sore can also follow biting, a sharp tooth, irritation, infection, or another non-cancerous problem. Persistence and change are the reasons for an examination; the sore itself cannot diagnose cancer. A clinician may check the mouth and neck and arrange tests when needed.

Arrange an oral examination if a sore remains, keeps returning, or changes. Record when it began, its location, pain, bleeding, and possible irritation from a tooth or dental appliance. Keep the area clean, choose softer foods if chewing hurts, and avoid tobacco, alcohol, and very hot or spicy foods while waiting. Do not repeatedly scrape or treat the area without advice.

Seek prompt assessment for a sore with a lump, unexplained bleeding, numbness, a neck swelling, loose teeth, or difficulty chewing or swallowing. Get urgent care if swelling affects breathing, or if bleeding is heavy or does not stop with gentle pressure.

Could a tooth, denture, or another irritation explain the sore? Does it need a dental or specialist examination? Would a biopsy or other test help? What symptoms should prompt an earlier review?