It is the most common type of benign tumor in the breast in women. It almost never turns into cancer. Usually a single menstrual period can occur in young women between the ages of 20 and 30. In 10-15 percent of patients, more than one can also be found.

Two-thirds of fibroadenomas are simple fibroadenomas and do not increase the risk of breast cancer unless there are additional risk factors (such as family history). If it is a complex fibroadenoma and there is a family history, it has been observed to increase the risk of breast cancer 3 times.

In women over 40 years of age, fibroadenomas must be removed if the growth rate is high (if it suddenly grows in a few weeks), if it is larger than 2 cm, and if there is a family history of breast cancer. Fast-growing giant fibroadenomas (larger than 5 cm) can be seen in adolescent girls. These also need to be surgically removed. Such patients do not require mastectomy or plastic surgery. Very good cosmetic results are obtained in operations where only the fibroadenoma is removed.

It is more common in adolescence and young women. There may be multiple fibroadenomas in the same breast or in both breasts at the same time. On examination, it presents as firm, mobile masses with smooth borders. Usually 2-3 cm. diameter; rarely they can reach very large diameters and cause asymmetry in the breast.

If the presence of the mass bothers the patient, it can be removed. However, there is no medical need for their removal; they can be monitored.