Mouth cancer diagnoses across the UK have doubled over the past twenty years, with upwards of 11,000 individuals now diagnosed annually, even though half of all adults remain unable to name a single warning sign. In England alone, new diagnoses surged by 119 per cent across two decades.

Although alcohol consumption and smoking remain established risk factors, experts believe that human papillomavirus infections, spread through oral sex, are helping fuel the rising number of diagnoses. Also known as oral cancer, the disease can strike any part of the mouth, such as the lips, tongue, cheeks, or gums.

Warning signs comprise an ulcer, a white or red patch inside the mouth, or an unusual swelling or lump in the neck, lip, or mouth. Additional red flags include ongoing trouble with speaking or swallowing.

Dentist Cathie Brady, who serves as president-elect of the Oral Health Foundation, spoke as Mouth Cancer Action Month began today. She stated, "It's easy to explain away an ulcer, patch or a lump, especially if it doesn't hurt." She added, "Most changes won't be cancer but you need a professional diagnosis to know for sure."

Karen Liesching-Schroder, a former nursery worker residing in Rochford, Essex, experienced a shocking diagnosis despite having never smoked and consuming very little alcohol. A tongue ulcer served as the initial warning sign for Karen.

The 54-year-old, who currently delivers talks regarding the condition, stated, "It didn't heal and it turned into a hole in my tongue." She further noted, "But I still didn't realise that was cancer."