The early symptoms of lung cancer may be a mild cough or shortness of breath, and as the cancer develops, these symptoms may become more severe and severe.

But like many other types of cancer, as the disease spreads, symptoms may appear on other parts of the body.

Different types of lung cancer can cause different symptoms, especially as it progresses.

Non-small cell lung cancer (NSCLC) often begins in the airways and grows rapidly and spreads to other parts of the body.

In some cases, lung cancer tumors may cause nerve damage.

Horner syndrome is a specific group of symptoms associated with nerve damage, and symptoms of the condition can be related to the eyes.

Horner syndrome can cause eyelid drooping and a decrease in the size of the pupil (the dark center of the eye), and symptoms often affect one side of the face.

Metastatic lung cancer may also cause symptoms that affect the eyes.

This type of lung cancer occurs when cancer cells break away from the tumor and spread to other parts of the body through the blood or lymphatic system.

Symptoms may include blurred or double vision, headache, slurred speech or seizures.

The main symptoms of lung cancer include:

• A cough that does not go away after two or three weeks.
• A prolonged cough that gets worse.
• Chest infections that keep coming back.
• Coughing up blood.
• Soreness or pain when breathing or coughing.
• Persistent shortness of breath.
• Constant fatigue or lack of energy.
• Loss of appetite or unexplained weight loss.