What is infertility? What does the word infertility means? What causes infertility? Who is to be blamed for infertility? Here is an answer to the entire question.Infertility means the genetic inability of a person to give birth or conceive. It can also be described as an inability of women to complete the full term of pregnancy. Women who are fertile witness the general period of fertility during and before ovulation. These women are infertile during the rest of menstrual cycle. The change in the cervical mucus and body temperature help to distinguish between fertility and infertility periods.