Is coughing up blood lung cancer?

Written by Han Shun Li

Pulmonology

Updated on March 01, 2025

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Patients with lung cancer can experience hemoptysis, but the occurrence of hemoptysis does not necessarily mean that it is caused by lung cancer. Although hemoptysis is a symptom of lung cancer, there are many other diseases that can cause it as well, such as tuberculosis, bronchiectasis, lung abscess, various pneumonias, certain heart diseases, blood disorders, etc. Therefore, it can only be said that hemoptysis may be an indication of lung cancer, not that hemoptysis confirms the presence of lung cancer.

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Written by Xia Bao Jun

Pulmonology

39sec

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Small cell lung cancer and non-small cell lung cancer differences

Small cell lung cancer and non-small cell lung cancer are both types of primary bronchogenic carcinoma, differing only in their cellular morphology. They also differ in clinical symptoms and characteristics of metastasis. Small cell lung cancer is more prone to metastasis clinically, including strenuous and distant spread, such as to the brain and liver. The medications used for each are also different; small cell lung cancer typically involves chemotherapy drugs like etoposide and cisplatin, whereas non-small cell lung cancer commonly uses drugs like paclitaxel and platinum-based drugs.

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Written by Han Shun Li

Pulmonology

44sec

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Is coughing up blood lung cancer?

Everyone knows that lung cancer can cause coughing up blood, but does coughing up blood necessarily mean one has lung cancer? It should not be interpreted this way. Although lung cancer can cause coughing up blood, there are many reasons for coughing up blood, and it is not only caused by lung cancer. Reasons for coughing up blood can also include bronchitis, pneumonia, bronchiectasis, tuberculosis, lung abscess, and many others. Therefore, if coughing up blood occurs, it doesn't necessarily mean one has lung cancer, and there is no need for excessive worry. If coughing up blood occurs, it is important to visit a hospital in a timely manner, where a doctor can conduct checks like chest X-rays to further investigate the cause.

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Written by Gong Chun

Oncology

1min 21sec

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How is lung cancer detected?

For lung cancer detection, it is recommended for individuals over forty, especially smokers, to undergo a low-dose spiral CT for screening. Secondly, if someone has been a long-term heavy smoker and has undergone chest X-rays and low-dose spiral CT and a lung mass is found, it is suggested that the patient undergo a contrast-enhanced CT or a PET-CT to determine the condition and location of the lung mass. After establishing the condition and location, a sputum cytology test can be conducted. Thirdly, to confirm whether it is lung cancer, one should undergo bronchoscopy to obtain a biopsy, or a transthoracic lung puncture biopsy, or examine live tissue or metastatic lesions, or perform a pleural fluid examination to detect the cancer cells and determine the specific type of lung cancer to guide treatment. However, if the nature of the lesion cannot be clearly determined through mediastinoscopy, bronchoscopy, chest wall puncture biopsy, or other methods, a thoracotomy exploration is recommended. Additionally, the examination of tumor markers cannot be ignored.

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Written by Gong Chun

Oncology

1min 19sec

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What causes lung cancer?

Lung cancer is caused by a variety of factors. Research indicates that lung cancer results from a combination of genetic defects, external and internal environmental factors, and personal factors. Numerous studies have confirmed that long-term and heavy smoking is the most significant carcinogenic factor for lung cancer. There is a positive correlation between the amount and duration of smoking and the incidence of lung cancer. The second factor is related to working in asbestos-related industries, which very much relates to the work environment, and also has a certain relation to smog. Indoor environmental pollution is also a very significant carcinogenic factor for lung cancer. This includes smoke from burning coal indoors, fumes from cooking oils in kitchens, and carcinogenic substances released by indoor decorating materials. Fourthly, internal human factors such as the immune status, metabolic abnormalities, genetic factors, and chronic lung infections are also related. The fifth factor involves irregular diet and rest habits, irritating foods, alcohol consumption, and heavy smoking.

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Written by Yan Chun

Oncology

1min 28sec

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Does early-stage lung cancer cause facial swelling?

Patients with early-stage lung cancer generally do not experience facial swelling. This is because early-stage lung cancers mainly include carcinoma in situ and stage I lung cancer. At this stage, the cancer tissue is confined to the mucosa, without invasion of the surrounding tissues or distant metastasis. Therefore, the clinical symptoms of patients with early-stage lung cancer primarily involve the respiratory system. Clinical symptoms mainly include coughing, often a dry cough without phlegm, or coughing up phlegm with blood, hemoptysis, and massive hemoptysis. Some patients may experience chest pain, or have a barking cough, or a metallic-sounding cough. Some patients may have shortness of breath after physical activity, and severe cases can experience breathing difficulties. In most cases, patients do not exhibit other clinical changes. However, as the disease progresses, and there is invasion into surrounding tissues, or distant metastases occur, symptoms of invasion into surrounding tissues or distant metastatic sites may appear. For example, metastasis to the cervical lymph nodes can cause enlarged lymph nodes, or compression of the superior vena cava by the patient, resulting in swelling of the face and neck.