患者34岁，孕1产0。原发不孕7年。因孕29周腹部增长过快1个月，下腹坠痛1天，伴少量阴道流血，于1996年5月6日入院。平时月经正常，末次月经1995年10月15日，停经40天后有食欲不振，恶心等早孕反应，停经50天有少量阴道流血。给黄体酮20毫克，肌注，每日1次，连用7天好转。孕21 Patient 34 years old, pregnant 1 produce 0. Primary infertility 7 years. Abdominal growth due to 29 weeks of pregnancy too fast 1 month, lower abdomen pain 1 day, with a small amount of vaginal bleeding, was admitted on May 6, 1996. Normal menstruation usually normal, the last menstrual October 15, 1995, 40 days after menopause, loss of appetite, nausea and other early pregnancy reactions, 50 days after menopause, a small amount of vaginal bleeding. Progesterone 20 mg, intramuscular injection, 1 day, once every 7 days improved. Pregnancy 21