Hyperprolactinemia is a medical condition characterized by an excess of prolactin hormone in the blood. The condition can lead to various health problems including infertility in both men and women, decreased libido, and irregular menstrual cycles. Alternative terms used to describe Hyperprolactinemia include hyperlactation, pituitary lactotroph hyperplasia, hyperprolactinaemia, and elevated prolactin levels. It is worth noting that these synonyms are used interchangeably in medical literature, though hyperprolactinemia is the most commonly used term. It is important to note that hyperprolactinemia can be caused by a wide range of factors including medication, thyroid dysfunction, and tumors.