Lung cancer is the leading cause of cancer deaths worldwide, and it often goes undetected until it has reached an advanced stage. Recognizing the warning signs of lung cancer can lead to an earlier diagnosis and better outcomes. Here are 11 warning signs that you should not ignore.

A persistent cough that lasts for more than a few weeks or worsens over time can be a sign of lung cancer. It may produce bloody or rust-colored sputum.

Chest pain that is constant and doesn't seem to be related to coughing, breathing, or other common causes should be evaluated by a healthcare professional. It may be associated with lung cancer.

Feeling short of breath or wheezing that doesn't seem to improve with time or treatment should not be ignored. It could be a sign of a lung-related issue, including lung cancer.

Losing a significant amount of weight without trying can be a warning sign of many types of cancer, including lung cancer. If you have lost 10 pounds or more without a clear explanation, see a doctor.

Lung cancer can spread to the bones, leading to bone pain. If you experience unexplained bone pain, especially in the back, hips, or ribs, it's important to seek medical attention.

While headaches are common and often not a cause for concern, persistent or worsening headaches can sometimes indicate the presence of lung cancer that has spread to the brain.

A hoarse or raspy voice that doesn't go away after a few weeks can be a sign of lung cancer. It may be caused by a tumor pressing on the nerve that controls the larynx.

If you develop a new, unexplained, or persistent cough that produces a wheezing sound, it's important to get it checked out, as it could be a sign of lung cancer.

Coughing up blood, even a small amount, should never be ignored. It can be a sign of lung cancer, or another serious condition that requires immediate medical attention.

Frequent or persistent chest infections, such as bronchitis or pneumonia, could be a sign of an underlying issue, such as lung cancer. If you experience recurrent infections, talk to your doctor.

Feeling unusually tired or fatigued, especially if it doesn't improve with rest, can be a sign of lung cancer. It's important to discuss this symptom with your healthcare provider.