Fibroadenoma of the breast is a common benign disease of the breast, with peak age of onset being 15-35 years; about 1/4 have no symptoms and 3/4 have pain and other uncomfortable symptoms; 4/5 have a single unilateral fibroadenoma and about 1/5 have unilateral or bilateral multiple lesions, and patients with multiple fibroadenomas tend to have a family history. Fibroadenomas have a long natural course; a few may subside spontaneously or increase in size rapidly, and most lesions grow slowly or remain unchanged. Fibroadenomas have a very low rate of malignancy and generally do not require treatment based on oncologic considerations, which means that a variety of therapeutic measures should not be undertaken in anticipation of malignancy. Diagnosis of fibroids in the breast: The lumps are usually found by accidental discovery of the breast by the patient in the shower, or by ultrasound or mammography during a physical examination by the organization. However, in order to confirm the diagnosis of fibroadenoma, the following work should be done: to go to the hospital and ask a breast specialist for examination. In general, the doctor should have a preliminary diagnosis based on the patient’s age, the texture, edge and mobility of the lump, etc. According to research, the accuracy rate of diagnosing fibroadenoma by clinical examination alone is only 66%, which means that the doctor has to use some instruments for further determination. The most commonly used instruments are ultrasound and mammography. For patients younger than 35 years old, ultrasound is used, and mammography is added only if malignancy is suspected; mammography is considered first for people over 40 years old. It should be noted that both ultrasound and mammography are imaging examinations, neither of which is 100% accurate, and the diagnosis must be confirmed by pathology. However, in general, not every person needs a pathological diagnosis; the doctor will make a clinical diagnosis based on age, characteristics of the mass, etc. A pathological diagnosis should be obtained for any suspected fibroadenoma judged by imaging to be BI-RADS category 3 or higher, especially for fibroadenomas intended for follow-up observation. The treatment of fibroadenoma of the breast is the most important concern. First of all, research has shown that no drug can cure fibroadenoma, so you should not rely on any drug to treat it. Secondly, regarding whether to follow up and observe or to operate, this is the most inconsistent understanding and a problem that confuses many patients and doctors. The following recommendations are given for the management of fibroids: 1. Follow-up observation is the least expensive medical treatment after the diagnosis is confirmed by hollow-needle aspiration biopsy pathology, and is suitable for most patients with slow-growing or unchanging fibroadenomas, especially for young patients. For patients <25 years of age with fibroadenoma, the rate of detection of breast cancer by follow-up observation is only 1 in 700. For patients over 35 years of age, the addition of mammography is recommended as a follow-up test. If rapid tumor growth is detected during the follow-up, it is recommended to end the follow-up observation and undergo surgical treatment. The criteria for rapid growth are: (1) adenoma growth of more than 20% of maximum diameter within 6 months or (2) more than 16% per month in patients <50 years old and more than 13% per month in patients ≥50 years old. 2. Surgical intervention (surgical treatment) In addition to rapid tumor growth, an increase in the BI-RADS classification category is also an indication for surgical intervention. In addition, fibroadenoma may also lead to changes in breast shape, breast discomfort and increased mental stress of the patient. The decision to perform surgical interventions and the method of implementation should respect the patient's wishes as much as possible with full informed consent. The main methods of surgical intervention are the traditional incisional tumor resection and the newer vacuum-assisted hollow-needle minimally invasive spinotomy and cryoablation.