Cough May Be a Warning Sign of Lung Cancer, Experts Say

Coughing is a common symptom of colds, flu and other respiratory infections, but experts warn that it can also be a sign of lung cancer.

The symptom alone does not mean someone has cancer. Many conditions can cause a cough, making medical assessment important when it persists or changes rather than improving.

A cough that does not go away, becomes worse or feels different from a person’s usual cough should be discussed with a doctor. Coughing up blood also requires prompt medical attention.

The key is not to assume that every cough is serious, but not to dismiss an unexplained or ongoing symptom as a routine infection. A healthcare professional can assess the cause and decide whether further tests are needed.