患者,女,24岁,未婚,因月经不正常就诊。20岁初潮,每次量很少,经期2～3天,先后共行经4次,停经近1年。父母非近亲婚配。出生时其父母年龄分别为25、20岁。患者为第1胎,有两个弟弟,未发现智力及性腺发育障碍。体查:营养中等,智力尚可。身高154cm,指距152cm,乳房基本未发育,无腋毛和阴 Patients, female, 24 years old, unmarried, due to irregular menstruation treatment. 20-year-old menarche, each small amount of menstrual 2 to 3 days, has a total of 4 times, menopause nearly 1 year. Parents non-relatives marriage. Their parents were 25, 20 years of age at birth. The patient was the first child with two younger brothers and no mental or gonadal developmental disorder was found. Physical examination: moderate nutrition, intelligence is acceptable. Height 154cm, finger distance 152cm, breast undeveloped, no armpit hair and yin