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Infertility is "a disease of the reproductive system defined by the failure to achieve a clinical pregnancy after 12 months or more of regular unprotected sexual intercourse (and there is no other reason, such as breastfeeding or postpartum amenorrhoea). Primary infertility is infertility in a couple who have never had a child.
A clinical definition of infertility by the WHO and ICMART is "a disease of the reproductive system defined by the failure to achieve a clinical pregnancy after 12 months or more of regular unprotected sexual intercourse." [58] Infertility can further be broken down into primary and secondary infertility.
In general, infertility or subfertility [5] in humans is defined as not being able to conceive a child after one year (or longer) of unprotected sex. [6] The antithesis of fertility is infertility , while the antithesis of fecundity is sterility .
The first lists show the most recent year where there is published total fertility rate (TFR) data ranked by sovereign states and dependencies, and are ordered by organization type – intergovernmental, governmental, or non-governmental organization that searched, organized, and published the data.
Reproductive endocrinology and infertility (REI) is a surgical subspecialty of obstetrics and gynecology that trains physicians in reproductive medicine addressing hormonal functioning as it pertains to reproduction as well as the issue of infertility.
The male infertility crisis is an increase in male infertility since the mid-1970s. [1] The issue attracted media attention after a 2017 meta-analysis found that sperm counts in Western countries had declined by 52.4 percent between 1973 and 2011.
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Endometriosis often presents with a very diverse array of symptoms, such as dysmenorrhea (pain during menstruation), cyclical pelvic pain (generalized pain in the lower abdomen that predictably worsens with menstruation), dyspareunia (pain during intercourse), or infertility (inability to achieve a pregnancy with unprotected intercourse for > 1 year).