Breast cancer is a malignant tumor that occurs on the breast. The early stage of the tumor is common between the lobules and glandular ducts of the breast. It occurs because various carcinogenic incentives cause malignant changes in cells. This malignant change can make the tumor grow rapidly in a short time, which is manifested in the presence of lumps on the breast. The lumps grow rapidly in a relatively short time, and even a few can cause pain.
Breast cancer is one of the most common malignant tumors in women all over the world. Its incidence rate and mortality rank first among female cancers. In recent years, its incidence rate has increased year by year. In 2020, the number of new cases of breast cancer in the world reached 2.26 million, replacing lung cancer as the “largest cancer in the world”. Every October is the “world breast cancer prevention month”, and the third Friday in October is the “Pink Ribbon care day”.