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A major cause of female infertility is premature ovarian insufficiency. [54] This insufficiency is a heterogeneous disease that affects about 1% of women who are under the age of 40. [54] Some instances of female infertility are caused by DNA repair dysregulation during meiosis. [54]
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 ...
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.
For other unknown reasons, endometriosis is more likely to develop in infertile women, and thus be a secondary phenomenon. [21] It is preferable to speak of "endometriosis-associated infertility" rather than any definite "infertility caused by endometriosis" because association does not imply causation. [3]
Approximately 20% of female infertility can be attributed to tubal causes. [1] Distal tubal obstruction (affecting the distal tubal opening (towards the ovary)) is typically associated with hydrosalpinx formation and often caused by Chlamydia trachomatis. [1] Pelvic adhesions may be associated with such an infection.
According to the CDC, 12% of women between the ages of 15 and 44 have trouble getting pregnant or carrying pregnancies to term. Women typically feel like part of life inevitably involves having ...
What causes infertility? Female fertility is known to decline with age as well as smoking, excessive alcohol use, obesity, low body weight and excessive physical or emotional stress.
Around 20 percent of women with PID develop infertility. [40] Even women who do not experience intense symptoms or are asymptomatic can become infertile. [41] This can be caused by the formation of scar tissue due to one or more episodes of PID, and can lead to tubal blockage.