The causes of breast cancer are not yet fully understood, but research has shown that the onset of breast cancer follows certain patterns and is related to various risk factors:

The first is the age of onset for female breast cancer, which is generally low from ages zero to twenty-four, gradually increases after twenty-five, and peaks from fifty to fifty-four years old. So, the first factor is related to age;

The second factor is genetics. If a mother or sister has breast cancer, then the individual’s likelihood of developing breast cancer may be higher, making family history a relevant factor;

The third point involves risk factors related to the breast, including early menarche (before the age of twelve), late menopause (after the age of fifty-five), being unmarried, nulliparous, late marriage, and not breastfeeding. These factors also tend to increase the likelihood of developing breast cancer;

The fourth point is that benign breast conditions, if not promptly diagnosed and treated, could potentially transform into malignant tumors;

The fifth point includes potential exposure to radiation, long-term use of exogenous estrogens, postmenopausal obesity, chronic alcohol consumption, and an irregular lifestyle, all of which can also have an impact.