患儿，女，第1胎，第1产，胎龄38＋周，足月顺产，1分钟Apgs评分9分。体重1900g，身长46cm，头围29cm，足月小样地貌，发育正常，肤色红润，反应正常，眼底正常，心肺查体无异常。父母均健，非近亲结婚，否认家族遗传病史，母月经规律，整个孕期血压正常，营养良好，体重增18． Child, female, first child, first child, gestational age 38+ weeks, full term spontaneous birth, 1 minute Apgs score 9 points. Weight 1900g, length 46cm, head circumference 29cm, full-term mimicry, normal development, color rosy, normal reaction, fundus normal, no abnormal heart and lung examination. Parents are healthy, non-relatives get married, deny the family history of hereditary, mother’s menstrual cycle, normal blood pressure throughout the pregnancy, good nutrition, weight gain 18.