| umls-concept:C0021361 | skos:definition | MSH: Diminished or absent ability of a female to achieve conception.,MEDLINEPLUS: <p>Infertility is a term doctors use if a woman hasn't been able to get pregnant after at least one year of trying. If a woman keeps having <a href='http://www.nlm.nih.gov/medlineplus/miscarriage.html'>miscarriages</a>, it is also called infertility. Female infertility can result from physical problems, hormone problems, and lifestyle or environmental factors.</p><p>Most cases of infertility in women result from problems with producing eggs. One problem is <a href='http://www.nlm.nih.gov/medlineplus/prematureovarianfailure.html'>premature ovarian failure</a>, in which the ovaries stop functioning before natural menopause. In another, <a href='http://www.nlm.nih.gov/medlineplus/polycysticovarysyndrome.html'>polycystic ovary syndrome</a> (PCOS), the ovaries may not release an egg regularly or may not release a healthy egg.</p><p>About a third of the time, infertility is because of a problem with the woman. One third of the time, i | lld:umls |
