Women with mastopexy that does not heal for years Mastopexy is a chronic disease, and although not every case of mastopexy is malignant, the many links between the two suggest the importance of active treatment. Women who use estrogen frequently Fashionable women are very concerned about maintenance and take estrogen or estrogen-containing supplements in order to retain their beauty, especially those professional women who have good financial means. However, estrogen can induce breast tumors, and epidemiological surveys show that using estrogen for more than 10 years will greatly increase the incidence of breast cancer. Obese women Obesity is a controversial risk factor. Some studies have reported that obesity can cause breast cancer, perhaps related to the high estrogen secretion in some obese women. Women with chronic exposure to radiation sources Human exposure to radiation, especially as a child, increases the chance of developing breast cancer as an adult. In particular, girls who receive breast irradiation because of early cancer are more likely to develop breast cancer. Women who stay up late or work at night for long periods of time A large epidemiological survey found that women who stay up late or work at night for long periods of time also have an increased incidence of breast cancer due to disruption of circadian rhythms.