Lung cancer can cause shoulder pain through several mechanisms. Tumors located in the upper part of the lungs, known as Pancoast tumors, can press on nearby nerves, leading to pain that radiates from the chest into the shoulder and arm. This type of pain may not be accompanied by the more typical lung cancer symptoms like coughing or shortness of breath, making it easy to overlook.

If shoulder pain persists without an obvious cause, especially in individuals with risk factors for lung cancer—such as a history of smoking or exposure to harmful substances—it is important to consult a healthcare professional. Early detection of lung cancer, even when symptoms are subtle, can significantly improve treatment outcomes.

If you or someone you know experiences unexplained shoulder pain along with other concerning symptoms like weight loss, fatigue, or chest discomfort, seek medical advice. Remember, early diagnosis can make a significant difference in fighting lung cancer effectively.