[Clinical presentation and natural history of endometriosis].

Natural history of endometriosis is unpredictable. Some recent data show that endometriosis is a progressive disease. Minimal lesions are transient and peritoneal implants are reorganized continuously.

Microbial flora of the cervix assessed at the time of embryo transfer adversely affects in vitro fertilization outcome.

Objective: To investigate whether the presence of cervical microorganisms, as detected on catheters used for ET, alters the outcome of IVF-ET.

Design: Prospective analysis.

Setting: The assisted reproduction unit of a hospital in Clamart, France.