There are no clear clinical indications of the three painful sites in the early stages of lung cancer. Usually, people with lung cancer may have no pain in the early stages, and usually patients have coughing, difficulty breathing, and other symptoms. When the tumour spreads to nearby tissues and organs, it may cause pain in the surrounding area, which is common in the following areas:

1. Chest pain: Patients with early-stage lung cancer may have symptoms of chest pain, and according to the degree of lesions, there may be different degrees of chest pain. Mild patients may present with irregular chest tightness, chest compression, or dull pain, such as feeling that the chest pain is worsening or persistently relieved, the location of the pain is limited, and the patient's lesion may involve the pleura or chest wall;

2. Sore throat: Patients with early-stage lung cancer may have sore throat, which is mainly related to frequent irritating dry cough, which is caused by pain caused by damage to the laryngeal mucosa. Cough is one of the typical manifestations of early-stage lung cancer and is usually the first symptom of lung cancer;

3. Lower limb joint pain: If the cells in the early stage of lung cancer secrete growth hormone, it may lead to pulmonary hypertrophic osteoarticular disease, which is manifested as symmetrical swelling and pain of the knee or ankle joint. Joint pain can also be relieved if the primary disorder is treated.

As lung cancer progresses, it may also cause pain in the shoulder, back, abdomen, arms, etc., often caused by the tumor invading the surrounding tissues, so the pain location is different.

Due to the large differences between individual patients, different patients have different factors such as age, constitution, environment, habits, etc., and the symptoms that may occur in the early stage of lung cancer should also vary from person to person. In addition to physical pain, the early manifestations of lung cancer can include symptoms such as shortness of breath, blood in the sputum, fever, etc., and some patients may have no symptoms. Regular medical examinations should be performed. If the patient is unwell, he should go to the hospital for examination in time and actively treat under the guidance of the doctor to avoid delaying the condition.

Tips: The medical science knowledge in the content is for reference only, does not constitute a medication guideline, does not serve as a basis for diagnosis, do not operate by yourself without medical qualifications, if you feel unwell, please go to the hospital in time.