Endometrial Scratching in In Vitro Fertilization Cycles With Oocyte Donation

Exclusion Criteria

• •Clinically significant systemic disease, hypothalamic or pituitary tumors
• •ovarian, uterine or breast cancer
• •hormonal abnormalities and / or medical , biochemistry, hematology pathology, which might interfere with gonadotropin treatment.
• •known positivity for human immunodeficiency virus (HIV), hepatitis C or B virus (HCV / HBV) of the candidate or her partner.
• •Uterine Factor(submucosal fibroids, intramural fibroids\> 4 cm)
• •Hydrosalpinx
• •Patients receiving immune treatment
• •Positive Diagnosis Thrombophilia
• •preimplantation genetic diagnosis needed
• •In case of using marital sperm are excluded the following patients:Altered male karyotype, Altered Meiosis in testicular biopsy, Altered FISH, sperm Fragmentation\> 45%
• •Pregnancy contraindication
• •Known allergy to preparations containing estrogens or any of its excipients.
• •Simultaneous participation in another clinical trial with medication.
• •Do not want or can not adjust to study protocol.