Breast fibroadenomas are the most common type of benign breast tumors, occurring in young women, and are rare in pre-menopausal and post-menopausal women. It is believed to be associated with relatively or absolutely elevated estrogen levels, breast tissue hypersensitivity to estrogen, and dietary and genetic factors. The most common reason for a visit to the doctor for breast fibroadenoma is the patient’s self-discovery of a breast lump. Most of the lumps occur in the gland-rich areas of the upper outer quadrant and are often solitary or may be bilateral. The shape is mostly oval or round, but lobulated or gourd-like growths are also possible. How to diagnose breast fibroadenoma The diagnosis of breast fibrous tumor with typical signs and imaging manifestations is not difficult. In clinical work, in order to avoid the missed diagnosis of malignant tumors, the triple examination of breast lumps is often used abroad: clinical physical examination, imaging examination and puncture biopsy. However, due to the fact that fine-needle aspiration has a certain rate of missed diagnosis, coupled with the fact that the age of onset of breast cancer in Chinese women is about 10 years earlier than that in Europe and the United States. Therefore, in domestic clinical work, women who have obvious lumps found by physical examination, if ultrasound or combined puncture examination is considered benign, can be followed up according to the patient’s wishes, but the patient must be informed that she must bear a very small risk of delayed diagnosis, and the decision of the next step of treatment will be made in conjunction with the patient’s wishes. If the result of puncture is normal breast tissue or fat tissue, it should be considered that the diagnosis is not clear, and another puncture can be performed. If it is still not clear, further surgical biopsy must be performed to clarify the diagnosis, and if the physician suspects that the mass has malignant tendency in the clinical physical examination, it is advisable to perform surgical excision biopsy as early as possible. About the surgical methods of breast fibroid, choice of surgical incision: according to the different parts of the tumor, different surgical incisions should be decided. Tumor near areola can be incised by circumareolar arc incision, and the incision can be closed by intradermal suture, so that the scar will not be easy to be detected after the wound is recovered. For the lower part of the breast, a curved incision can be made along the lower edge of the breast, which makes the wound more hidden. For young patients, if the tumor is <3cm, the minimally invasive McMurtry rotational excision is performed. The procedure is minimally invasive, with a small incision of about 5mm in the hidden part of the breast margins, which leaves almost no scar after the operation, and with the use of compression bandages and aseptic techniques, postoperative bleeding and infections can also be avoided. However, in the application of Mammerton minimally invasive rotational excision, it is necessary to pay attention to the patient's coagulation function; whether menstruation, breastfeeding or pregnancy; whether the lump is >3cm (because it is not easy to remove completely). Smaller breasts and lumps that are too close to the skin or nipple or chest wall may also affect the excision results. For patients over 35 years old, it is recommended to have timely surgery after clinical physical examination, imaging examination, and puncture biopsy to clarify the diagnosis Surgery should be chosen to remove part of the gland around the lump to prevent recurrence.