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Elevated levels of prolactin in the blood; a normal physiologic reaction during lactation, but pathologic otherwise; often due to physical or emotional stress or rapid weight loss, sometimes to pituitary adenoma; amenorrhea is usually present.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012
hyperprolactinaemiaExcessive levels in the blood of the pituitary hormone PROLACTIN. Very high levels suggest a pituitary tumour, but abnormal levels may be caused by oestrogens, kidney failure and various drugs.
Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005