1. Persistent Cough That Won’t Go Away

Everyone gets a cough from time to time, especially during cold and flu season. But if you’ve had a cough that persists for more than a few weeks, it may be a red flag. Pay attention to any changes in the sound, frequency, or severity of your cough. A dry, nagging cough that becomes chronic should prompt a visit to a healthcare provider.

2. Shortness of Breath

Experiencing shortness of breath while performing daily activities that were once easy can be an early warning sign of lung cancer. This symptom occurs when a tumor blocks or narrows an airway or if fluid builds up around the lungs. If you find yourself struggling to breathe or feeling unusually winded, seek medical advice.

3. Chest Pain or Discomfort

Chest pain that’s sharp, dull, or constant can sometimes be a symptom of lung cancer. This pain may worsen with deep breathing, coughing, or laughing. Lung cancer-related chest pain occurs when tumors press on nerves or the lining around the lungs. If you’re experiencing unexplained chest discomfort, don’t wait to get it checked.

4. Hoarseness or Voice Changes

If you notice your voice sounds hoarse, raspy, or deeper than usual and it lasts for more than a few weeks, it could be a sign of lung cancer. Voice changes occur when a tumor affects the nerve that controls the larynx (voice box). Persistent voice changes warrant a medical evaluation.

5. Unexplained Weight Loss

Sudden, unintentional weight loss of 10 pounds or more without changes to diet or exercise may be a symptom of lung cancer. Cancer cells consume a lot of energy, leading to weight loss. Additionally, the presence of cancer can alter your metabolism. If you’re losing weight unexpectedly, see a doctor as soon as possible.

6. Blood in Cough (Hemoptysis)

Coughing up blood, even a small amount, should never be ignored. Blood in your sputum may be bright red or rust-colored. While blood in your cough can be linked to other conditions like bronchitis or pneumonia, it’s also a potential sign of lung cancer. Immediate medical attention is essential if you notice blood in your cough.

7. Fatigue That Won’t Go Away

We all feel tired sometimes, but lung cancer-related fatigue is different. It’s a deep, unshakable exhaustion that doesn’t improve with rest. Cancer-related fatigue can be caused by the cancer itself, the body's response to it, or reduced oxygen levels in the blood. If you’re constantly drained despite sleeping well, it’s worth getting evaluated.

When to See a Doctor

If you’re experiencing one or more of these warning signs, especially if they persist for several weeks, don’t delay seeking medical advice. Early detection of lung cancer significantly improves treatment outcomes.

Take Action for Your Health

While these symptoms may be caused by other health conditions, it’s crucial not to dismiss them. If you’re at risk for lung cancer — particularly if you smoke or have a history of smoking — be especially vigilant. Regular screenings, such as low-dose CT scans, can help detect lung cancer early when it’s most treatable.