Abstract: Infertility not only refers to the inability to conceive offspring primarily, but also refers to the state of a woman who is unable to carry a pregnancy to full term, which is a great problem for many families. Prevalence of infertility varies depending on the definition, there are many reasons causing infertility. While uterine cavity abnormality is one of the common reasons interfering embryo implantation for infertility patients, so the assessment of abnormal uterine lesions is becoming a core part of the evaluation of infertility. As hysteroscopy is considered to be the most accurate diagnosis of intrauterine lesions, in order to optimize fertility treatment, the examination is increasingly performed before IVF as a common treatment and the abnormal uterine lesions found during the hysteroscopic examination can be resected simultaneously which improve the pregnancy outcomes. This article mainly focuses on assessment on several mostly common intrauterine factors before undergoing IVF cycle by hysteroscopy and impact on pregnancy outcomes in IVF after hysteroscopic resection.

Key words: Hysteroscopes, Fertilization in vitro, Myoma, Endometrium