The main causes of breast cancer

Why does breast cancer continue to occur? In fact, most people know little about breast cancer. So, what are the causes of breast cancer ? Let's learn about it from the following article.

1. Age: In women, the chance of developing breast cancer increases with age. It is rare before menarche and before the age of 20, but the incidence of breast cancer rises rapidly after the age of 20. It is higher between the ages of 45 and 50, but it is relatively flat. The incidence continues to rise after menopause and reaches its peak around the age of 70. The mortality rate also increases with age. After the age of 25, the mortality rate gradually increases and continues to rise until the elderly. Therefore, this is one of the causes of breast cancer.

2. Genetic factors: This is also a common cause of breast cancer. Women in the family with a history of breast cancer in the first-degree direct family have a 2 to 3 times higher risk of developing breast cancer than the normal population.

3. Weight gain: This may also be an important risk factor for breast cancer in postmenopausal women.

4. Age of menarche: Those whose menarche occurs before the age of 13 have a 2.2 times higher risk of developing breast cancer than those whose menarche occurs after the age of 17.

5. Age at menopause: Those who reach menopause at an age greater than 55 have an increased risk of breast cancer compared to those who reach menopause at an age less than 45.

The above is a detailed description of the causes of breast cancer. I hope it can help everyone understand the knowledge of breast cancer and cure breast cancer in time. If you have other questions about breast cancer, you can contact our online experts to answer your questions.