Detailed introduction to the five major causes of breast cancer

Breast cancer is a common malignant tumor in women. For most patients, if they want to detect the disease early, they must understand the causes of breast cancer . Only by understanding the causes of breast cancer can they receive timely symptomatic treatment. Let’s take a look at the causes of breast cancer.

1. Early menarche and late menopause. The relative risk of breast cancer increases by 2.2 times when the menarche age is younger than 12 years old compared to those older than 17 years old. The risk of breast cancer increases by 1 times when the menopause age is older than 55 years old compared to those younger than 45 years old. Early menarche is mainly caused by late menopause.

2. Genetic factors. Studies have found that if a woman's mother had bilateral breast cancer before menopause, her own risk of breast cancer is 9 times that of ordinary women, and the average age of breast cancer in the second generation of breast cancer patients is about 10 years earlier than that of ordinary people. Women with sisters who have breast cancer have a risk 3 times that of ordinary people. It should be emphasized that the cause of breast cancer is not direct inheritance, but a kind of inheritance of "cancer quality". Relatives of breast cancer patients do not necessarily suffer from breast cancer, but they are more likely to suffer from breast cancer than ordinary people.

3. Marriage and childbearing. Epidemiological studies have shown that even if a woman is married but infertile or has her first child after the age of 30, it is also an unfavorable factor, but the risk of breast cancer in unmarried women is twice that of married women. Experts believe that childbearing has a protective effect on the breast, but this only applies to women who have a full-term birth before the age of 30. Recent studies have shown that breastfeeding has a protective effect on the occurrence of breast cancer, mainly for premenopausal women.

4. Ionizing radiation. The breast is a tissue that is more sensitive to the carcinogenic activity of ionizing radiation. When young, the breast is in the mitotic activity stage and is most sensitive to the carcinogenic effect of ionizing radiation. The effect of ionizing radiation is cumulative, and multiple small-dose exposures are as dangerous as a single large-dose exposure, which has a dose-effect relationship.

5. Unhealthy eating habits. The incidence and mortality of breast cancer are strongly correlated with the amount of fat digested per capita. Some company employees have high incomes and high living standards, which lead to unscientific and unhealthy "high-calorie, high-fat" eating habits, which greatly increase the risk of breast cancer.

The five key points mentioned above are about the causes of breast cancer. From the above article, we can see that the causes of breast cancer are multifaceted, but for patients, as long as they understand the causes of breast cancer, they can detect the disease in time and then treat it. Here I wish you a speedy recovery.