Sterility (properly infertility) is a condition in which the pair even after 12 months of regular sexual intercourse without using a method of contraception can not come to the pregnancy. Infertility can be primary or secondary depending on whether it was pregnancies in the past (secondary) or not (the primary).
This phenomenon is very prevails both in the world and in our country where the project 16-18% of couples of reproductive age, but it is important to note that with proper treatment most of these couples finally reach offspring (over 80%).
Generally speaking talking to specialist is advised only after a year of unsuccessful attempts, but if a woman is over 35 years old or a health condition that is known to be related to infertility (irregular menstrual cycles, endometriosis, previous ectopic pregnancy, pelvic inflammatory disease, polycystic ovarian syndrome is, etc.) is present, advice is to talk to doctor after 6 months, and if necessary earlier.