2.7.4. Embryo transfer and luteal phase support (LPS).
endometrial polyps, endometrial abnormalities
ENDOMETRIAL POLYPS, ENDOMETRIOSIS, UTERINE FIBROIDS, INTRAUTERINE ADHESIONS
All patients received cleavage-stage embryo transfer on day 3 after oocyte retrieval, or blastocyst transfer on day 5, except for the following cases: uterine or endometrial abnormalities, such as endometriosis, uterine fibroids, endometrial polyps or intrauterine adhesions; serum 