随着优生优育计划生育意识的加强,早早孕药物流产及早早孕吸宫的广泛开展,因面对早早孕的诊断提出了较高的要求。妇女一旦月经延迟就希望早日明确诊断,以便及早终止。在停经37天以前,子宫形态未明显增大,B 超检查还不能看到孕囊,需依据实验室结果 With the strengthening of family planning awareness of prenatal and postnatal care, early pregnancy pregnancy induced abortion and early pregnancy uterine widening, due to the face of early pregnancy diagnosis put forward higher requirements. Once menstruation is delayed, women hope to have a clear diagnosis as soon as possible so that they can be terminated as soon as possible. 37 days before menopause, uterine morphology did not significantly increased, B-ultrasound can not see the gestational sac, based on laboratory results