Risk factors for breast cancer

1.Genetic: with a family history of hereditary breast cancer can be manifested in two forms: one for mothers with breast cancer, her daughter has also been identified in breast cancer; However, in a family, at least two sisters suffering from breast cancer, this family The incidence of breast cancer than those without family history of breast cancer in families 2-3 times higher.

2.menarche at 12 years of age, the risk of breast cancer than 17 years of age of menarche large 2.2; menopause later than 50 years of age, after more than 45 years of menopause were at increased risk of breast cancer 1 times .

3.Normal spontaneous abortion does not increase the risk of breast cancer, but repeated abortions, or 18-year-old abortion many times before, who easily lead to breast disease, increased risk of breast cancer.

4.Breastfeeding is the best natural means of prevention of breast cancer, breast health breast cancer risk can reduced by 20% to 30%.

5.Poor quality of life: breast disease and is closely related to sexual life, sexual repression of women can increase breast lobular hyperplasia and risk of breast cancer incidence.

6.Depression: Long-term stimulated by negative emotions, the body of life rhythm is disorder, the neuroendocrine system is dysfunction, leading to an imbalance within the environment, decreased immunity allows the production and release of thymus thymosin decreased lymphocytes, macrophages mutant cells in vivo phagocytic activity decreased monitoring capacity and prone to cancer.