What causes breast cancer

summary

I heard that a friend of mine suffered from breast cancer two days ago. I felt that the news was very sudden. I also had a friend who was engaged in medical research. When I went to chat with her, I asked her about breast cancer. Next, I will tell you what causes breast cancer.

What causes breast cancer

First, breast cancer in situ is not fatal; but because breast cancer cells lose the characteristics of normal cells, the connection between cells is loose and easy to fall off. Once the cancer cells fall off, the free cancer cells can spread throughout the body with blood or lymph, form metastasis and endanger life. At present, breast cancer has become a common tumor threatening women's physical and mental health.

Second: the female breast is composed of skin, fibrous tissue, breast gland and fat. Breast cancer is a malignant tumor in the epithelial tissue of breast gland. The age incidence rate of female breast cancer was lower at 0~24 years of age, and gradually increased after 25 years old. The peak age of 50~54 years group decreased gradually after 55 years old. Family history of breast cancer is a risk factor of breast cancer. The so-called family history refers to patients with breast cancer in their first-degree relatives (mothers, daughters, sisters).

Third: in recent years, it has been found that breast gland density has also become a risk factor for breast cancer. The risk factors of breast cancer include early menarche (< 12 years old), late menopause (> 55 years old); unmarried, no childbearing, late childbearing, no breast-feeding; suffering from benign breast diseases without timely diagnosis and treatment; atypical hyperplasia of breast confirmed by hospital biopsy (biopsy); chest exposure to excessive dose of radiation; long-term use of exogenous estrogen; postmenopausal obesity; long-term excessive drinking of alcohol; high risk factors of breast cancer; And carrying mutated genes associated with breast cancer.

matters needing attention

The incidence rate of breast cancer in women is still high, which is mainly related to the age and habits of women. And another important factor is that breast cancer is hereditary. In order to avoid this disease, female friends must pay special attention to their physical changes in daily life.