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In approximately one-third of these cases the man is the factor, in one third the woman is the factor, and in the remaining third the infertility is a product of factors on both parts. In many lower-income countries, estimating infertility is difficult due to incomplete information and infertility and childlessness stigmas .
[3] 15-30% of male factor infertility cases can be correlated with genetic abnormalities. [5] One of the most commonly identified genetic abnormalities in male factor infertility are microdeletions on the long arm of the Y chromosome (Yq), specifically at a region known as the azoospermic factor (AZF) region. [3]
Causes or factors of female infertility can basically be classified regarding whether they are acquired or genetic, or strictly by location.. Although factors of female infertility can be classified as either acquired or genetic, female infertility is usually more or less a combination of nature and nurture.
About 10–15% of human couples are infertile, unable to conceive.In approximately in half of these cases, the underlying cause is related to the male. The underlying causative factors in the male infertility can be attributed to environmental toxins, systemic disorders such as, hypothalamic–pituitary disease, testicular cancers and germ-cell aplasia.
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]
Tubal factor infertility (TFI) is female infertility caused by diseases, obstructions, damage, scarring, congenital malformations or other factors which impede the descent of a fertilized or unfertilized ovum into the uterus through the fallopian tubes and prevents a normal pregnancy and full term birth. Tubal factors cause 25-30% of ...
Testicular infertility factors (8 P) V. ... 6 P) Pages in category "Male infertility" The following 3 pages are in this category, out of 3 total. ... Wikipedia® is a ...
Specific risk factors are still undetermined; however, genetic and environmental factors have been found to be associated with endometriosis, with genetic risk factors accounting for about 51% of endometriosis cases. Genetic risk factors associated with endometriosis include: Earlier menarche (≤11 years of age) Short menstrual cycles (≤27 days)