Having healthy and plump breasts is the expectation of every woman, but there are always some lesions that disturb its lifelong happiness. To block these lesions, you should first learn to self-examine your breasts. Breast self-examination Breast examination should first observe the development of the breast, whether both breasts are symmetrical, whether the size is similar, whether both nipples are on the same level, whether the nipples are retracted and depressed; whether there is erosion of the nipples and areolas, how the color of the breast skin is, whether there is edema and orange peel-like changes, whether there is redness and swelling and other inflammatory manifestations, and whether the superficial veins in the breast area are angry and so on. The best time for examination: For women with normal menstruation, the 9th to 11th day after menstruation is the best time for breast examination, when estrogen has the least effect on the breast and the breast is in a relatively quiescent state, making it easy to detect lesions. Lumps that appear during breastfeeding should be further examined after weaning if they are clinically suspected to be tumors. Breast lumps Breast lumps are the main symptom of breast tumor. Breast lumps are also seen in breast hyperplasia, breast tuberculosis, etc. The breast gland is thickened by touching the gland and the boundaries are not clear, so it is difficult to measure the exact size. In non-menopausal women, this condition is physiological, especially because it varies in size with the menstrual cycle. However, if the thickened tissue persists for a long period of time, independent of the menstrual cycle, or if it becomes increasingly thickened and enlarged, especially in postmenopausal women, it must be taken seriously, because about 8% of such lesions are cancerous.