I have a breast that leaks clear fluid occasionally. I had a mammogram and they found a lump and then did an ultrasound. The results were fine and they think I have a cyst and that's why my breast leaks, but I'm still concerned.

I can appreciate your concern. Any thing that is abnormal is a reason for concern.

Fibrocystic breast changes cause an abnormal breast discharge. Fibrocystic refers to the presence or development of fibrous tissue and cysts. Fibrocystic changes in your breasts may cause lumps or thickenings in your breast tissue. They do not indicate, though, the presence of cancer. In addition to causing pain and itching, fibrocystic breast changes can, at times, cause secretion of clear, white, yellow, or green nipple discharge.

Generally, the following tests are done to confirm a diagnosis:ultrasonography of the breast, mammography, blood tests to measure hormone levels, and computed tomography (CT) or magnetic resonance imaging (MRI)
Did you have any of these tests?

If a disorder is the cause, the disorder is treated. If a noncancerous tumor is causing a discharge from one breast, the duct that the discharge is coming from may be removed.
Has your physician recommended treatment?

Maryann