The first symptoms of a lung tumor may be a mild cough or shortness of breath, which may become more severe over time. As non-small cell lung cancer (NSCLC) progresses, other symptoms may appear as the disease begins to affect other organs.
Lung cancer usually starts in the bronchial tubes and then spreads quickly. In some cases, the tumor can damage nerves. One of the consequences is Horner's syndrome, which is manifested by drooping eyelids and a decrease in pupil size. One side of the face is most often affected. If metastases reach the brain, symptoms can include blurred vision, double vision, headache, speech problems, and even seizures.
The classic signs of lung cancer remain a cough that lasts more than two to three weeks, repeated chest infections, coughing up blood, pain when breathing, persistent shortness of breath, and constant fatigue. Among the less common manifestations, doctors note hoarseness, swelling of the face or neck, and pain in the shoulder or chest.
Experts remind us that one of the most effective ways to reduce the risk of the disease is to completely quit smoking. Scientific studies also confirm that a diet low in fat and high in fiber, including five or more servings of fresh fruits and vegetables per day, can significantly reduce the likelihood of developing the disease.