Breast cancer risk factors and prevention
The causes of breast cancer
Judging from the current clinical practice and animal experimental data analysis related to the occurrence of breast cancer with the following factors :
1, hormone secretion disorder : the so-called hormone disorder is the main estrogen secretion disorder. Because of the high incidence of breast cancer is age women aged 40-60. This stage is the age of women's estrogen secretion disorders, high estrogen period. As the body of estrogen secretion increased, this could make breast ductal epithelial cells of hyperplasia and cancer.
2, childbirth and lactation : In recent years a large number of investigations, no birth control or fertility has little lactating women than breast cancer occurred repeatedly breastfeeding, breastfeeding women in a long time more. This shows fewer births, fewer breastfeeding may increase the incidence of breast cancer is the opportunity.
3, fiber cystic breast disease : This lesion is a pre-cancerous lesions, very easily change as breast cancer.
4, genetic factors : major performance in a family history of breast cancer. According to the information, positive family history can be manifested in two forms : one for mothers suffering from breast cancer, her daughter has a good breast cancer, breast cancer occurred in amenorrhea, for regular bilateral; Another for mothers with no history of breast cancer, but in a family, at least two sisters with breast cancer this family of the incidence of breast cancer than non-family family history of breast cancer incidence rate of 2-3 times, and this breast cancer occurred in amenorrhea, often for unilateral.
Breast Cancer: breast cancer Knowledge Base, family, history, secretion, women