What Are the Causes of Cancer?

Cancer is a malignant tumor, and generally, when people talk about cancer, they are referring to a malignant tumor. The process of cancer formation is complex and involves many factors, such as environmental pollution, unhealthy lifestyle habits, infection, genetics, and physical immunity. Cancer formation takes a long time, but the incidence rate of cancer is currently very high, so it is essential to pay sufficient attention to cancer. Let's take a look at the causes of cancer formation below:

1. Lifestyle Habits

Many patients with malignant tumors develop the disease due to poor lifestyle habits. Long-term smoking, drinking, staying up late, and overeating can all contribute to the development of malignant tumors. For example, smoking is a major factor in the development of lung cancer, and excessive alcohol consumption can lead to oral cancer and esophageal cancer. Regularly eating hot foods can increase the risk of developing esophageal cancer, oral cancer, and gastric cancer.

2. Iatrogenic Factors

In addition, some radioactive rays are also a significant factor in the development of malignant tumors, such as ionizing radiation and X-rays. Hormones or immunosuppressive agents taken by patients can also lead to the emergence of malignant tumors. These are all factors that need to be taken into account. It is essential to wear protective clothing during radiological examinations in hospitals.

3. Genetic Factors

Some patients with malignant tumors develop the disease due to genetic factors. When many members of a family have a history of malignant tumors, the risk of developing malignant tumors in the next generation significantly increases. Therefore, individuals with a family history must be extra cautious and regularly undergo medical check-ups for early detection and treatment.

4. Immunological Factors

Some people are born with inherent immune deficiencies, which makes them more susceptible to developing malignant tumors. However, even individuals with normal immune function can develop malignant tumors, mainly because cancer cells evade the immune system's surveillance and destroy it.