| Prolactin-secreting tumours, also known as prolactinomas, are benign (noncancerous) growths that form in the pituitary gland. These tumours cause an overproduction of prolactin, a hormone primarily responsible for regulating reproductive functions. Elevated levels of prolactin in the blood, known as hyperprolactinemia, can lead to a range of symptoms, including infertility, irregular menstrual cycles, and, in some cases, unexpected lactation. Although these tumours are non-life-threatening, they can severely impact a person’s quality of life.
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