催乳素瘤可致骨密度降低已有报道，但以骨质疏松为首诊症状的催乳素瘤尚未见报道。本文报道１例如下：患者，女，３３岁，因腰背、四肢酸痛２年，溢乳半月于９７年１０月４日就诊。患者于２年前始月经量减少，经期缩短为１～２天，但月经周期正常，未介意。近２年经常腰背、四 It has been reported that prolactinoma can cause a reduction in bone mineral density, but prolactinoma, the first to be diagnosed with osteoporosis, has not been reported. This article reports 1 example: the patient, female, 33 years old, because of back pain, limb pain for 2 years, galactorrhea half month on October 4, 1997. The patient’s menstrual flow began to decrease two years ago, and her menstrual period was shortened to 1 to 2 days, but the menstrual cycle was normal and did not mind. Nearly 2 years often back, four