Why does left nipple discharge yellow and right clear?

Discharge from the nipples can vary in color and consistency due to several factors, including hormonal fluctuations, infection, or benign conditions like duct ectasia. Yellow discharge from one nipple may indicate an underlying issue such as a blocked duct or infection, while clear discharge from the other may be normal or related to hormonal changes. It's important to consult a healthcare professional for a proper assessment and diagnosis if there are significant differences in discharge between the two nipples.