Lung cancer is one of the most common and serious types of cancer. It begins in the lungs and may spread to lymph nodes or other organs in the body, such as the brain. Early signs of lung cancer may be vague or subtle, and they are usually overlooked until the disease is advanced. It’s important to recognize these signs and seek medical attention if you experience any of them. Here are 11 signs of lung cancer to be aware of:

One of the most common symptoms of lung cancer is a persistent cough that does not go away. It may be accompanied by coughing up blood or rust-colored sputum. If you have a chronic cough that lasts for more than a few weeks, it’s important to see a doctor for evaluation.

Feeling short of breath or becoming easily winded is a common symptom of lung cancer. This can occur if a tumor is blocking or narrowing an airway, or if fluid accumulates in the chest. If you notice a sudden or unexplained shortness of breath, it’s essential to seek medical attention.

Chest pain that is often worse with deep breathing, coughing, or laughing may be a sign of lung cancer. The pain may be located in the chest, shoulder, or back, and can be a result of enlarged lymph nodes or inflammation in the chest cavity.

Wheezing, or a hoarse voice, can be a sign of lung cancer when it is associated with other symptoms. It may be caused by lung tumors pressing on the airways or bronchial tubes, leading to breathing difficulties and an audible wheezing sound.

Losing weight without trying can be a warning sign of lung cancer. This weight loss may be due to cancer cells using energy in the body or as a result of decreased appetite from the cancer itself. If you lose 10 pounds or more without a clear explanation, it’s important to consult a doctor.

Lung cancer can spread to the bones, leading to bone pain, especially in the back or hips. This pain may become more noticeable at night or while resting, and may be a result of the cancer affecting the nerves or causing pressure on the bones.

Headaches that are persistent and do not respond to usual treatments may be a sign of lung cancer that has spread to the brain. These headaches may be accompanied by other symptoms such as weakness, numbness, or vision problems.

Experiencing extreme tiredness or fatigue that does not improve with rest can be a sign of lung cancer. The cancer can cause a decrease in red blood cells, leading to anemia, which can result in fatigue and weakness.

Coughing up blood, or blood-streaked sputum, is a concerning symptom that should not be ignored. It can be a sign of various conditions, including lung cancer. If you experience this symptom, seek medical attention immediately.

Frequent respiratory infections, such as bronchitis or pneumonia, can be a sign of an underlying issue such as lung cancer. If you are experiencing repeated infections or if they are more severe than usual, it’s important to see a doctor for further evaluation.

Changes in voice, such as hoarseness, may be a sign of lung cancer when they persist for an extended period without any apparent cause. This change in voice may be caused by a tumor pressing on the nerve that controls the larynx or by the cancer spreading to the vocal cords.