Letrozole and Sequential Clomiphene to Improve the Outcome of Embryo Transfer

Letrozole and Sequential Clomiphene to Improve the Outcome of Embryo Transfer in Polycystic Ovary Syndrome (PCOS) Patients

The purpose of this study is to study the effects of letrozole and sequential clomiphene in ovulation and pregnancy in PCOS patients.

To evaluate the efficacy of letrozole and clomiphene in PCOS patients is important,especially in resistent PCOS patients. Although most medications prove the effectiveness of letrozole and clomiphene,the subjects of letrozole and sequential clomiphene in PCOS patients are rarely.The trial may provide further basis for this medication in PCOS patients in ovulation. If the medication demonstrates efficacy, the method would help the patients with PCOS to deal with the problem of infertility.

Inclusion Criteria:

• Women with PCOS

Exclusion Criteria:

• •Women more than 38 years or less than 20 years

  • With infectious diseases or endocrine diseases
  • Who refuse to participate in the experiment