患儿女,15(7/(12))岁,因月经未来于96年7月2日来我院就诊。系第一胎,母孕期体健,未接触射线及化学药物,足月顺产,生后母乳喂养,智力正常。父母非近亲结婚。体检:呼吸18次/分,体重:38公斤,后发际低,盾状胸,双侧乳房平坦如男孩,双侧乳头小,乳头在锁骨中线外2.5厘米,乳头间距增宽,心、肺、腹未见明显异 Children with children, 15 (7 / (12)) years old, due to the future of menstruation in July 2, 1996 to our hospital. Department of the first child, pregnant mother during pregnancy, no exposure to radiation and chemical drugs, full-term birth, breastfeeding after birth, mental retardation. Parents marry non-relatives. Physical examination: Breathing 18 beats / min, body weight: 38 kg, after the hairline low shield-shaped chest, bilateral breast flat as a boy, bilateral nipple, nipple in the middle of the clavicle 2.5 cm widened nipple spacing, heart and lung Abdominal no obvious difference