异位妊娠是常见的妇产科疾病 ,近年来其发生率有明显升高的趋势 ,由于快速敏感的 β -ＨＣＧ放射免疫连续测定和阴道超声检查的应用 ,使异位妊娠早期确诊率不断提高。从而使许多未破裂异位妊娠得以药物保守治疗 ,氨甲喋呤是最常用药物。我院妇产科应用氨甲喋呤 (ＭＴＸ)肌肉注 Ectopic pregnancy is a common obstetric and gynecological diseases, the incidence in recent years, a trend of significant increase, due to rapid and sensitive β -HCG continuous radioimmunoassay and vaginal ultrasound applications, so that the early diagnosis of ectopic pregnancy rate increased . As a result, many unruptured ectopic pregnancies have been treated conservatively, and methotrexate is the most commonly used drug. Obstetrics and Gynecology in our hospital methotrexate (MTX) muscle injection