For a couple undergoing ART treatment, the maternal age at oocyte retrieval was ≥38 years (0 points), the AMH level was 4.1 (44.72 points), the absence of adenomyosis was at 100 points, fertilization of ≤7 embryos was at 0 points, good blastocyst quality score was 36.33 points, vitrification on day 6 was at 0 points), blastocyst re-expansion speed of 100.1 was at 51.76 points, and the presence of embryo string was at 26.97 points. This evidence concerns the gene AMH and adenomyosis.