Several common factors that induce breast cancer in life

What are the common factors in life that induce breast cancer? I believe many people have this question. Only when we understand the cause can we carry out more targeted treatment, so it is very important to understand the cause. Let us follow the experts to learn about the factors that induce breast cancer .

1. Age: In women, the incidence rate increases with age. It is rare before menarche and before the age of 20, but it rises rapidly after the age of 20. It is higher at the age of 45 to 50, but it is relatively flat. The incidence rate continues to rise after menopause and reaches its peak at around the age of 70. The mortality rate also increases with age. After the age of 25, the mortality rate gradually increases and keeps rising until the elderly.

2. Genetic factors: Women with a history of breast cancer in their first-degree family have a 2-3 times higher risk of breast cancer than the normal population. This is one of the factors that induce breast cancer.

3. Age of first pregnancy: The risk gradually increases with the delay of the age of first birth. Those who give birth at the age of 35 or above have a higher risk than those with no childbearing history.

4. Estrogen supplementation after menopause: Long-term use of estrogen during menopause may increase the risk of breast cancer. This is also a factor that induces breast cancer.

5. Weight gain may be one of the factors that induce breast cancer in postmenopausal women.

The above is an introduction to the factors that induce breast cancer. I hope the above content can be helpful to you. If you have any questions about breast cancer, you can contact our online experts and they will give you detailed answers.

For more information, please visit the breast cancer special topic at http://www..com.cn/zhongliu/rx/ or consult an expert for free. The expert will then give a detailed answer based on the patient's specific situation.