Intense pain could be a sign of early miscarriage or ectopic pregnancy.

强烈的疼痛可能是早期流产或宫外孕的征兆。

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Ectopic pregnancy is a severe complication of early pregnancy, which will threaten the health and life of woman.

异位妊娠是早期妊娠严重的并发症，威胁着广大女性的健康和生命。

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Conclusion For the above three markers in the early diagnosis of ectopic pregnancy provides another strong reference.

结论：用以上三个指标联合检测对于异位妊娠的早期诊断提供了又一有力的参考指标。

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If the ectopic pregnancy is detected early, an injection of the drug methotrexate is sometimes used to stop cell growth and dissolve existing cells.

CNN: Ectopic pregnancy