A dental expert has warned that a mouth ulcer lasting more than two weeks could be a red flag for something far more sinister. Dr Andrej Bozic, an oral surgeon at Dentum in Croatia, which treats hundreds of British patients annually, stressed that while most ulcers are harmless, persistent sores should not be dismissed.
“Most ulcers are harmless and clear within a week or two,” Dr Bozic explained. “But if one persists, bleeds, or keeps coming back in the same spot, it’s a red flag that shouldn’t be dismissed.” Stubborn ulcers can occasionally indicate early oral or throat cancer, particularly among smokers, heavy drinkers, or those with HPV.
The Oral Health Foundation reports that mouth cancer cases have doubled over the past two decades, and HPV-related throat cancers are among the fastest-growing cancer types, especially among men. Dr Bozic noted that these cancers often start small and painless, making early detection crucial.
Key symptoms to watch for include white or red patches, non-healing ulcers, and thickened areas inside the mouth. Dr Bozic advised seeking a check-up immediately if any of these appear. “Don’t wait for it to hurt,” he said. “Early detection gives the best chance of full recovery.”
Regular six-monthly dental check-ups are vital, as dentists are trained to spot early signs of cancer. Dr Bozic also recommended maintaining good oral hygiene, avoiding tobacco, limiting alcohol, and ensuring HPV vaccination for young people.
