The 7 Most Common Cancer Myths

Today, February 4, is World Cancer Day. We studied the most popular cancer queries on the Internet and asked Ilya Goryunov, a candidate of medical sciences, an oncologist at the K + 31 clinic, to comment on these myths.

The 7 Most Common Cancer Myths

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There are 3-4 basic theories of the origin of malignant disease. They all agree in the following: adverse environmental factors (chemical, physical, biological) affect the body, but the degree of exposure to each person that provokes the appearance of a tumor cell is different.

Someone quickly develops a malignant tumor, someone does not occur at all. The degree of susceptibility to the development of a malignant disease depends on a hereditary predisposition. The clearest example: a mutation in the BRCA1 and BRCA2 genes. A mutation in one or both genes sharply increases the risk of developing breast cancer, but breast cancer does not develop in 100% of cases in those patients who have these changes.

Thus, cancer is not inherited, but a predisposition is transmitted, which, under the influence of adverse environmental factors, may or may not be realized.

The 7 Most Common Cancer Myths

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Two groups of diseases are the main ones due to mortality: diseases of the circulatory system - 47% and malignant diseases - 16%. The opinion that cancer is the most common fatal disease has arisen due to an increase in the incidence (or rather, an increase in the detection of diseases by malignant neoplasms) over the past 10 years by 20%! At the same time, a significant increase in mortality from malignant neoplasms (ZNO) was not detected. This is due to the fact that more acute malignancies are detected in the early stages, which modern medicine in our country has learned to treat quite successfully. Regular examinations, the use of diagnostic imaging methods that allow you to diagnose the process in the early stages (with tumor sizes from 0.

5-1 cm to 2.5 cm), can dramatically increase patient survival. Now it is an average of five years.

The 7 Most Common Cancer Myths

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Food can have physical and chemical effects on the body - one of the adverse environmental factors.

For example, the systematic use of hot foods can lead to the development of cancer of the esophagus, the systematic use of strong alcoholic beverages - to cancer of the esophagus and cancer of the stomach. Low fiber, animal fat, systematic use of fermentation products (wine, beer) can contribute to the development of malignant diseases.

The 7 Most Common Cancer Myths

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It is necessary to separate skin cancer and melanoma. Skin cancer is a malignant tumor of epithelial origin, melanoma is a malignant tumor originating from melanocytes producing the melanin pigment.

Since the genesis of the tumor is different, the course of the disease is different. Melanoma is characterized by a more aggressive malignant course than skin cancer. Any effect on melanocytes that increases their proliferative activity increases the risk of melanoma. A factor that increases the activity of melanocytes is the ultraviolet light spectrum. In the tanning bed, the ultraviolet spectrum is mainly used, so the risk of melanoma when using the tanning bed is much higher than from ordinary solar radiation.

You can reduce the risk of developing melanoma by reducing the degree of exposure to ultraviolet light.

The 7 Most Common Cancer Myths

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In medicine, the following distinction is made: in women - the mammary gland, in men - the mammary gland. Accordingly, women have breast cancer, and men have breast cancer. The incidence of breast cancer is 100 times the incidence of breast cancer.

The 7 Most Common Cancer Myths

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The appeared altered cell is characterized by a number of disorders at the gene, chromosomal and genomic levels. Every day, a huge number of such cells appear in the body, but they are destroyed by the body's immune system. In order for the altered cell to develop and turn into a tumor, there must also be changes in the immune system. In addition, the conditions for further division and development of the detached cell (potentially metastatic) should still be in place.

In any case, talking about the contagiousness of cancer is not necessary.

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The 7 Most Common Cancer Myths

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Regular intake of soda will lead to the development of inflammatory changes in the gastric mucosa and theoretically to the development of stomach cancer.

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