how common is it for a woman to be infertile

How to prevent Infertility: In vitro fertilization (IVF) means fertilization outside the human body or in the laboratory. This applies to any type of conception where fertilization takes place outside the body. It is a major treatment for a variety of problems such as endometriosis, tube-peritoneal disturbances, pelvic adhesions, PCOD and unexplained infertility.