Hyperprolactinemia is condition affecting non-pregnant women, caused by elevated levels of the hormone prolactin in the blood. Hyperprolactinemia may affect menstrual cycle and ovulation. It may also cause infertility and loss of libido.
Occasionally hyperprolactinemia may be caused by a small tumor in the pituitary gland, which may damage the surrounding organs such as the optic nerves. Therefore, it is crucial to diagnose and treat hyperprolactinemia in a timely fashion.