Prolactinoma is a benign tumor of the pituitary gland that produces excess prolactin, a hormone responsible for milk production and regulation of menstrual cycles. This condition can lead to symptoms such as irregular periods, infertility, and in some cases, breast discharge in both men and women. Diagnosis typically involves blood tests to measure prolactin levels and imaging studies like an MRI to visualize the tumor. Treatment options often include medications that lower prolactin levels and shrink the tumor, with surgery being a consideration in certain cases. Regular monitoring is essential to manage the condition effectively.