Recurrent Implantation Failure
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: 1. This study includes subjects aged 25-40 years who underwent hysteroscopy 4-7 days after ovulation or progesterone conversion. 2. Previous embryo transfer >=3 times, and a total of more than 3 high-quality subjects who have not yet obtained pregnancy are included in the RIF study group. The control group consisted of participants who had given birth and were currently undergoing routine hysteroscopy for endometrial polyps. 3. The chromosomes of both husband and wife of the experimental subjects are normal. 4. Agree to sign the informed consent form. RIF Study Group Inclusion Criteria: 1. This study included subjects aged 25-40 years old, with >=3 previous embryo transfers, and a total of more than 3 high-quality transfers that had not yet obtained pregnancy, to be included in the RIF cohort. 2. Both husband and wife have normal chromosomes. 3. Agree to sign the informed consent form.
Exclusion criteria
Exclusion criteria: Hysteroscopic RIF Group Exclusion Criteria: 1. Low ovarian reserve, FSH>12mIU/ml or AMH12mIU/ml or AMH<=1.1ng/ml; 2. Organic lesions such as uterine malformations, intrauterine adhesions, uterine submucosal fibroids, and large intramural fibroids; 3. Ultrasound shows that there is more hydrosalpinx untreated; 4. Subjects who have undergone vaginal washing, vaginal medication or oral antibiotic therapy in the past 1 week.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| clinical pregnancy rate; | — |
Secondary
| Measure | Time frame |
|---|---|
| Vaginal microbiome;lactate;short-chain fatty acids; | — |
Countries
China
Contacts
Peking University Shenzhen Hospital