A dental specialist has issued a critical alert regarding mouth ulcers that don’t heal, as they might indicate a more serious condition amidst a rising tide of oral and throat cancer cases across the nation. Although cold weather, a compromised immune system, and stress can lead to more ulcers during the winter, any sore that lingers for more than two weeks should be promptly evaluated, according to Dr. Andrej Bozic, an oral surgeon at Dentum in Croatia, a clinic frequented by numerous British patients each year.

“Most ulcers are benign and resolve within a week or two,” Dr. Bozic clarified. “However, if an ulcer remains, bleeds, or reappears in the same location, it’s a warning sign that requires immediate attention.”

Why persistent ulcers pose serious risks

While the majority of mouth ulcers are due to stress, irritation, or accidental cheek bites, persistent sores might sometimes be an early indication of oral or throat cancer, particularly in individuals who smoke, drink heavily, or have HPV (human papillomavirus). The incidence of these cancers is rapidly increasing throughout the UK.

The Oral Health Foundation has noted that mouth cancer diagnoses have doubled over the last 20 years, and HPV-related throat cancers are now among the fastest-growing cancer types, with men being particularly affected.

“These cancers often begin small and without pain,” Dr. Bozic noted. “You might feel fine otherwise, leading to a tendency to wait and see if the ulcer heals. However, early detection is crucial.”

He emphasized that dentists and oral surgeons are often the first to notice early changes in tissue, such as white or red patches, unhealing ulcers, or thickened areas inside the mouth.

The warning signs to look for

Dr Bozic advises anyone to seek a check-up immediately if they notice:

• A mouth ulcer that lasts longer than two weeks
• A lump, patch or sore spot that keeps recurring in the same area
• Pain or difficulty swallowing
• A lump in the neck or under the jaw

“If you notice any of these symptoms, don’t wait for it to hurt,” he recommended. “Early detection gives the best chance of full recovery.”

Simple steps to stay safe

Dr Bozic stated that keeping up with regular six-monthly dental check-ups is one of the simplest ways to ensure early detection of serious conditions.

“Your dentist isn’t only checking for cavities,” he said. “We’re also trained to spot early signs of cancer, infections and other diseases that may first appear inside the mouth.”

He also suggests maintaining good oral hygiene, avoiding tobacco and limiting alcohol – both significant risk factors for oral and throat cancers – and ensuring HPV vaccination for young people.

“Most ulcers are nothing to worry about,” Dr Bozic added. “But if one refuses to heal, don’t wait. Getting it checked could save your life.”