History, exam & lab
Identify the secretions as clear or milky and test for blood.
Blood in the discharge requires imaging
and evaluation for a breast tumor. A serum prolactin
is obtained. Elevated levels require imaging of the pituitary gland, usually by mri
. The prolactin will be normal in about 1/2 and often is caused by breast stimulation by the patient, her partner or by clothing and is likely benign.