患者22岁，G1P07+月孕，B超发现胎儿畸形，要求引产，于1997年4月12日入院。患者末次月经1996年9月7日，孕早期曾有一次轻度感冒，但未服药，孕期无服药史，无有毒物及射线接触史，但孕前及孕期长期接触电子计算机，孕期无阴道流血流液，孕4+月自觉胎动至今，近两月子宫增大速 Patient 22 years old, G1P07 + month pregnancy, B ultrasound found fetal malformations, requiring induction of labor, in April 12, 1997 admission. Patients with the last menstrual September 7, 1996, had a mild early pregnancy flu, but did not take medicine, no history of medication during pregnancy, no toxic and radiation exposure history, but before pregnancy and pregnancy long-term exposure to electronic computers during pregnancy without vaginal bleeding Fluid, pregnant 4+ months fetus fetal movement so far, the past two months, the uterus increased speed