Right back pain can be an early symptom of lung cancer. Because the pain of lung cancer usually appears when the pleura is compressed, right back pain can be an early symptom of lung cancer or an advanced symptom of lung cancer depending on where the lung cancer tumor appears. Of course, other diseases can also cause right back pain. Right back pain, if it is an early symptom of lung cancer, is usually due to the fact that the tumor happens to grow in an area very close to the pleura. The tumor presses and stimulates the pleura in the early stage causing pain. If the right back pain is an advanced symptom of lung cancer, the tumor usually grows far away from the pleura, then the tumor will not stimulate the pleura to produce pain at the beginning, and the right back pain will appear only when the tumor expands or metastasizes to the pleura in the advanced stage of lung cancer. In this case, the tumor usually does not have very obvious symptoms in the early stage. Other diseases such as muscle strain, intercostal neuralgia, thoracic spine disease can also cause right back pain. To summarize, if the right back persistent pain can not be relieved, you should go to the hospital in time to clarify the cause of the disease, which is conducive to the treatment of the disease.