A painless, solitary hard lump in the breast is the clinical characteristic of fibroadenoma of the breast. Breast fibroadenoma is the most common benign breast tumor, which occurs mostly in young women. The lumps are mostly round, with smooth surface, clear demarcation with surrounding tissues and no adhesions. Breast tuberculosis is common in middle-aged women, with few systemic symptoms of tuberculosis, mainly manifested as breast lumps, with a slow course. After rupture, ulceration and long-lasting overflow may occur, and there is a thin pus like bean residue, and the ipsilateral axillary lymph nodes are often significantly enlarged. The occurrence of painless solitary hard lumps in the breast is associated with estrogen overstimulation, so they are most often seen in women between the ages of 20 and 25 who are in their sexual prime. During pregnancy, lactation or pre-menopause, due to large secretion of estrogen, tumors can grow rapidly; animal experiments also confirm that large amount of estrogen can induce tumor formation. The treatment of breast tumor should be based on early detection and early diagnosis. Women should be alert to breast disease, which is a highly prevalent female disease, and should conduct regular self-examination every month, preferably about 1 week after menstruation, because at this time, breasts are softer and lumps can be easily touched. When found, they should go to the hospital for a standardized examination as soon as possible.