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The NHS has issued a warning to anyone who has been experiencing a persistent cough for three weeks or more. The health organisation stated that such a symptom could be indicative of a lethal disease that claims the lives of approximately 33,100 Brits annually. Coughs are a common ailment that many of us experience throughout the year. They can signal a variety of seasonal illnesses such as a cold, the flu or Covid. They may also be a result of hay fever, an allergy or exposure to irritants like dust or smoke. However, in certain instances, they could be a cause for concern. In a post shared on social media platform X, the NHS cautioned that a cough persisting beyond three weeks could potentially be a symptom of lung cancer. According to Cancer Research UK, this is the deadliest form of cancer in the UK, responsible for 20 per cent of cancer-related deaths. The NHS advised: "Contact your GP practice if you are experiencing any of these signs and symptoms of lung cancer. It's probably nothing serious, but early diagnosis and treatment can save lives." In an infographic, it underscored the following symptoms: The NHS added: "Contact your GP if you're experiencing any of these symptoms." According to the NHS website, less common symptoms of lung cancer include: The NHS explains: "See a GP if you have symptoms of lung cancer, such as breathlessness or a persistent cough. The GP will ask about your general health and your symptoms. "They may examine you and ask you to breathe into a device called a spirometer, which measures how much air you breathe in and out. You may be asked to have a blood test to rule out some of the possible causes of your symptoms, such as a chest infection." Cigarette smoking represents the single greatest risk factor for developing lung cancer, accounting for more than seven out of 10 cases. Additional causes include exposure to radon, asbestos, and coal and coke fumes, amongst other substances. Those seeking support to quit smoking can access a list of available services on the NHS website here .
