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卵子冷冻原因分析
Analysis of the causes of oocyte vitrification
| Causes of oocytes vitrification | No. of cycles | Proportion (%) |
| Husband was azoospermia or severe spermatogenesis disorder | 6 | 22.22 |
| Sperms failed to be obtained from the husband on the day of oocyte retrieval | 10 | 37.04 |
| Husband was unable to reach the hospital on the day of oocytes retrieval | 4 | 14.81 |
| Husband was not suitable for sperm collection due to acute diseases | 5 | 18.52 |
| Other | 2 | 7.41 |
