Welcome to the new Gustave Roussy website

A new website designed to offer you a simpler, clearer, and more intuitive experience. Patients, caregivers, healthcare professionals, and donors: find information, news, and services more easily.

Lung Cancer

Symptoms of Lung Cancer

Lung cancer can remain asymptomatic for a long time. When symptoms do appear, they are nonspecific and may have other causes. However, a persistent or unusual cough, unusual shortness of breath, coughing up blood, or an unexplained change in overall health should prompt you to seek medical attention. 

Photographie médecins en réunion

Key Takeaways

The appearance of a symptom does not necessarily mean that it is cancer. However, any unusual, persistent, or worsening symptom should be evaluated by a doctor, regardless of whether you smoke or not. 

Respiratory symptoms that should raise concern

Respiratory symptoms can occur in people who smoke, have smoked, or have never smoked. In someone who already has a cough or a chronic respiratory condition, it is especially important to pay attention to any change in or worsening of their usual symptoms.

General symptoms that are sometimes associated with it

Lung cancer can also cause an unexplained decline in overall health. Several symptoms may be associated with it:

  • unusual and persistent fatigue;
  • loss of appetite or unintentional weight loss;
  • difficulty swallowing;
  • a persistent fever or symptoms that do not go away despite appropriate treatment;
  • more rarely, swelling of the face, neck, or eyelids.

Smoker or nonsmoker: the same signs deserve attention

Smoking is the leading risk factor for lung cancer, but the disease can also occur in people who have never smoked. Persistent symptoms should therefore be evaluated in all cases.

When should you see a doctor?

It is recommended that you see a doctor if you experience an unusual symptom that persists, recurs, or worsens. The healthcare professional will assess the situation and determine whether tests—including chest imaging—are necessary.

In the event of heavy coughing up of blood or sudden difficulty breathing

Contact emergency services immediately. These symptoms can have several causes and require prompt medical evaluation.

Coordinated Care at the CICT

Gustave Roussy, Marie-Lannelongue Hospital, and Paris Saint-Joseph Hospital are pooling their expertise within the International Center for Thoracic Cancers. The InstaDiag pathway makes it possible to quickly arrange the necessary tests when lung cancer or another thoracic tumor is suspected.

Lung Cancer: What Are the Warning Signs?

Professor David Planchard, a thoracic oncologist and head of the Thoracic Pathology Committee at Gustave Roussy, explains in a video the symptoms that should not be ignored.