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Female infertility refers to ... (12.5 years in the United States, [4] 12.72 in Canada, [5] 12.9 in ... [66] among many more where polygamy is more common and more ...
Male infertility is responsible for 20–30% of infertility cases, while 20–35% are due to female infertility, and 25–40% are due to combined problems in both partners. [29] [5] In 10–20% of cases, no cause is found. [5] The most common cause of female infertility are ovulation problems, usually manifested by scanty or absent menstrual ...
Canada's fertility rate hit a record low of 1.4 children born per woman in 2020, [32] below the population replacement level, which stands at 2.1 births per woman. In 2020, Canada also experienced the country's lowest number of births in 15 years, [ 32 ] also seeing the largest annual drop in childbirths (−3.6%) in a quarter of a century. [ 32 ]
The following will cover the advancements of female fertility agents, major causes of female infertility. Next, it emphasizes on common female fertility agents in terms of their mechanism of action, side effects, fetal consideration and clinical application and ended up by the introduction of supplements and herbal medicines for female infertility.
20-30% percent of infertility cases are due to male infertility, 20–35% are due to female infertility, and 25-40% are due to combined problems. [13] In 10–20% of cases, no cause is found. [13] The most common cause of female infertility is ovulatory problems, which generally manifest themselves by sparse or absent menstrual periods. [60]
The replacement fertility rate is 2.1 births per female for most developed countries (in the United Kingdom, for example), but can be as high as 3.5 in undeveloped countries because of higher mortality rates, especially child mortality. [11]
A study of a population of French women from 1670 and 1789 shows that those who married at age 20–24 had 7.0 children on average and 3.7% remained childless. Women who married at age 25–29 years had a mean of 5.7 children and 5.0% remained childless. Women who married at 30–34 years had a mean of 4.0 children and 8.2% remained childless. [20]
In medicine, fertility refers to the ability to have children, and infertility refers to difficulty in reproducing naturally. [4] 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]