What causes cancer?
Nov 10, 2025
Source: Cainiu Health
Dr. Yang Ziqi
Introduction
In general, cancer development may be caused by factors such as genetic predisposition, aging-related cell degeneration, long-term stimulation from chronic inflammation, viral or bacterial infections, and unhealthy lifestyle habits. It is recommended to seek medical attention promptly, identify the underlying cause, and receive appropriate treatment under a doctor's guidance. In daily life, maintaining a positive mindset and avoiding prolonged anxiety or depression are important.
Cancer development is generally caused by factors such as genetic predisposition, cellular aging due to aging, long-term stimulation from chronic inflammation, viral or bacterial infections, and unhealthy lifestyle habits. It is recommended to seek timely medical attention, identify the underlying cause, and receive appropriate interventions under a doctor's guidance. Specific analysis is as follows:
1. Genetic factors: A family history of cancer may indicate the presence of inherited oncogenes, increasing the risk of cancer in offspring. Regular cancer screenings—such as breast ultrasound, gastroscopy, and colonoscopy—can help detect abnormalities early for prompt intervention. Avoid exposure to carcinogens like tobacco, alcohol, and radiation to reduce the likelihood of activating cancer-related genes.
2. Cellular aging due to aging: As people age, their cells' ability to divide and repair declines, increasing the probability of genetic mutations that may lead to cancer. Engaging in moderate physical activity, such as brisk walking or tai chi, can enhance metabolic function. Increasing intake of fresh fruits and vegetables in the diet provides essential vitamins and helps slow down cellular aging.
3. Long-term stimulation from chronic inflammation: Persistent inflammatory conditions such as chronic atrophic gastritis or chronic hepatitis repeatedly damage tissue cells over time, potentially leading to malignant transformation. Patients should follow medical advice to control inflammation with medications—for example, using omeprazole enteric-coated capsules, aluminum magnesium carbonate chewable tablets, and domperidone tablets for chronic atrophic gastritis.
4. Viral and bacterial infections: Certain infections are closely linked to cancer development—for instance, human papillomavirus (HPV) infection may lead to cervical cancer, while Helicobacter pylori infection increases the risk of gastric cancer. For HPV infection, treatments such as recombinant human interferon α-2b gel, imiquimod cream, or baofukang suppositories may be used as directed by a physician. For H. pylori infection, a combination therapy including amoxicillin capsules, clarithromycin tablets, and omeprazole enteric-coated capsules can effectively eradicate the bacteria and reduce cancer risk.
5. Unhealthy lifestyle habits: Long-term smoking, excessive alcohol consumption, staying up late, and a high-fat diet continuously damage cells and increase cancer risk. Quitting smoking, limiting alcohol intake, maintaining regular sleep patterns, and avoiding late nights are crucial. Adjusting dietary habits by reducing intake of fried and processed foods, and maintaining a healthy body weight can significantly lower the likelihood of developing cancer through improved lifestyle choices.
In daily life, it is important to maintain a positive mental state and avoid prolonged anxiety or depression. Regular health check-ups should be performed, and any unusual bodily signals—such as unexplained weight loss or persistent pain—should be monitored closely. Comprehensive health management can effectively reduce the risk of cancer and promote overall well-being.
