Will early-stage lung cancer cause coughing up blood?

Written by Sun Ming Yue

Medical Oncology

Updated on April 27, 2025

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Patients with lung cancer, in the early stage, may have symptoms of coughing up blood. Some patients not only cough up blood but may also experience coughing or coughing up phlegm. In more severe cases, there may be symptoms of fever or difficulty breathing, and some may experience chest tightness or chest pain. If such conditions are detected, timely treatment is necessary to effectively alleviate the symptoms. It is recommended to consider chemotherapy or radiotherapy for treatment. Patients themselves must pay attention to rest and avoid excessive fatigue.

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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 An Yong Peng

Pulmonology

56sec

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Can early-stage lung cancer cause shoulder pain?

In the early stages of lung cancer, it generally does not cause shoulder pain. Early-stage lung cancer often does not involve critical structures and typically does not produce noticeable clinical symptoms. However, a small number of central lung cancers may cause symptoms related to coughing. Moreover, shoulder pain can occur in cases of lung cancer, often seen in superior sulcus tumors. A superior sulcus tumor, also known as a Pancoast tumor, is a tumor located at the top of the lung. As the tumor grows, it may compress the brachial plexus nerves, leading to symptoms such as shoulder pain and throat pain. It can also cause symptoms like enophthalmos (sunken eyeball) and pupil constriction. Therefore, when encountering these signs clinically, it is necessary to consider the possibility of a superior sulcus tumor and conduct examinations like a chest CT scan for evaluation.

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Written by Hu Zhong Dong

Medical Oncology

1min 5sec

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Causes of Lung Cancer

The most common cause of lung cancer is smoking, but many people who have never smoked also develop lung cancer. One possible reason could be related to kitchen fumes. Chinese cooking habits often involve high-temperature frying and stir-frying. After frying in hot oil, the higher the temperature, the more harmful substances are in the fumes, which over time could lead to lung cancer. Some patients develop lung cancer due to air pollution; secondhand smoke is also a significant cause. For example, if a husband smokes, the likelihood of his wife developing lung cancer is more than 200% higher than in the general population, indicating that smoking harms not only the smoker but also their nearest and dearest family members. Additionally, there are other potential causes including psychosomatic factors such as chronic insomnia, depression, decreased immunity, genetic factors, and more.

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Written by Sun Ming Yue

Medical Oncology

37sec

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Do early-stage lung cancer patients experience vomiting?

If a patient develops lung cancer, some may experience symptoms of nausea and vomiting in the early stages, which is caused by the spread of cancer cells. Others may experience localized pain. It is suggested that lung cancer patients who experience nausea and vomiting adopt a fasting method for treatment, or treat it through localized massage. If patients discover that they have lung cancer, it is crucial to control it in the early stages to prevent the spread of cancer cells. If necessary, treatment can be administered through chemotherapy drugs or radiation therapy drugs.

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Written by Gong Chun

Oncology

1min 13sec

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Early symptoms of lung cancer

Early-stage lung cancer, especially peripheral lung cancer, often has no symptoms and is mostly found during chest X-rays or CT scans. The clinical symptoms of lung cancer are closely related to the location, size, pathological type of the tumor, whether it compresses or invades adjacent organs, and whether there is metastasis. The symptoms of lung cancer generally include: First, some symptoms of the primary tumor growing locally, including cough, hemoptysis, difficulty breathing, and chest pain. When the tumor grows inside a larger bronchus, it might cause some irritative coughing. Second, as the tumor continues to grow and affects the drainage of the bronchi, it may lead to secondary lung infections, presenting with symptoms such as cough and purulent sputum. Third, there might be bloody sputum streaked with blood or intermittent minor hemoptysis, though significant hemoptysis is very rare.