How can the symptoms of lung cancer be seen?

If you have lung cancer, then the symptoms of lung cancer will be manifested in many aspects. In fact, after suffering from lung cancer, many parts of the human body will show symptoms. It depends on whether people are careful. So how can the symptoms of lung cancer be seen?

The symptoms of lung cancer are mostly asymptomatic in the early stages. Almost two-thirds of lung cancer patients are in the late stage (stage III or IV) when they seek medical treatment. 95% of patients have clinical examination results. Primary tumors, metastatic tumors, systemic symptoms or tumor-associated symptoms can all be the patient's first symptoms.

The first symptoms caused by the primary tumor accounted for 27%. The symptoms were related to the location of the primary tumor. Central lung cancer was manifested by irritating dry cough, breathlessness, repeated pneumonia in the same location, hemoptysis or asthma, recurrent laryngeal nerve, phrenic nerve compression symptoms or superior vena cava compression syndrome. Peripheral tumors are more common with symptoms such as chest pain, breathlessness or pleural effusion. Large peripheral lesions, central necrosis, and cavities eventually present similar manifestations to lung abscesses. Common symptoms of primary lung cancer are grouped.

Symptoms of lung cancer are caused by distant metastatic lesions, accounting for 32%. Common symptoms of lung cancer in distant metastatic sites include: lymph nodes, adrenal glands, liver, bones, lungs, brain and chest wall, which produce some corresponding symptoms, indicating that lung cancer has reached the late stage, such as: tumors near the mediastinum can invade the phrenic nerve, causing paralysis of the ipsilateral diaphragm, showing elevated diaphragm position and abnormal respiratory movements under fluoroscopy; invading the ipsilateral recurrent laryngeal nerve, causing hoarseness, paralysis of the ipsilateral vocal cord and fixation in the median position; compressing the superior vena cava, causing edema of the head, face and upper limbs, and venous distension; invading the pleura. It causes a large amount of bloody effusion in the pleural cavity, aggravating the symptoms of shortness of breath, or directly invades the chest wall, causing severe chest pain; lung cancer at the apex of the upper lobe is located at the entrance of the thorax, also known as superior pulmonary sulcus cancer, which can invade and compress the brachial plexus, cervical sympathetic ganglia, and subclavian artery and vein, producing a series of special meridians, cervical sympathetic ganglia, and subclavian artery and vein, producing a series of unique symptoms, such as numbness and pain in the ipsilateral upper limb, which gradually increases and becomes difficult to tolerate; muscles and skin show atrophic changes, and the veins of the upper limb are distended and edematous; and cervical sympathetic nerve syndrome such as ptosis of the upper eyelid, miosis of the pupil, enophthalmos, and absence of sweat on the face on the same side.

10% to 20% of lung cancer symptoms are accompanied by tumor-associated syndromes. The most common symptoms are small cell lung cancer and squamous cell carcinoma. Common tumor-associated syndromes include: pulmonary osteoarthritis syndrome (clubbed fingers, bone and joint swelling and pain, periosteal hyperplasia, etc.), SIADH (syndrome of inappropriate antidiuretic hormone secretion), hypercalcemia, etc., as well as Cushing's syndrome, myasthenia gravis or male breast enlargement. About 16% of patients are accompanied by neuromuscular symptoms. Some patients have skin diseases such as scleroderma and acanthosis nigricans.

The symptoms of lung cancer are closely related to the location, size, compression, invasion of adjacent organs, and metastasis of the tumor. Tumors grow in larger bronchi, often causing irritating coughs. The enlargement of the tumor affects bronchial drainage, and secondary lung infection may cause purulent sputum. Another common symptom is bloody sputum, usually with blood spots, blood streaks, or intermittent hemoptysis; for some patients, even one or two bloody sputums are of great reference value for diagnosis. For some patients, due to the obstruction of larger bronchial tubes caused by tumors, the symptoms of lung cancer may include chest tightness, shortness of breath, fever, and chest pain.

The above is the explanation given by experts on the symptoms of lung cancer. I hope it can help you answer your questions. Experts remind everyone that if you suffer from any disease in your daily life, you must not delay treatment. This is very dangerous. Some diseases will worsen or cause other diseases.

For more information, please visit the lung cancer special page at http://www..com.cn/zhongliu/fa/ or seek free consultation from an expert, who will provide a detailed answer based on the patient's specific situation.