| Summary points: | A 33-year-old woman presents with irregular menses, obesity, hirsutism, infertility, and hyperprolactinaemia. The report summarises the patient's medical and treatment history, laboratory results, pelvic ultrasonography, pituitary MRI, treatment, and outcome; images provided. The authors discuss the causes and impact of hyperprolactinoma, review the diagnosis and comorbidities associated with polycystic ovary syndrome (PCOS), and present the literature on cases of PCOS with hyperprolactinoma. |