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Infertility Definition and Types
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Three main events necessary for pregnancy to occur are: Ovulation: the process by which the mature egg is released from one of the woman’s ovaries. Operative hysteroscopy associated with tubal cannulation is helpful to treat cornual obstruction. Couples who do not conceive after treatment for six cycles with documented ovulation should also consider referral to an infertility specialist. In the United States, around 10 percent of women aged 15 to 44 years are estimated to have difficulty conceiving or staying pregnant. Blockage of the ejaculatory duct: Sperm can be extracted directly from the testicles and injected into an egg in the laboratory.
If a blockage is present, surgery may be necessary. It is important to tell a doctor if excessive mental and emotional stress develop. Therefore, it is particularly important to evaluate both partners when investigating infertility. Similarly, bilateral obstruction of the sperm ducts can cause azoospermia and infertility. The Effect of Female Age and Ovarian Reserve on Pregnancy Rate in Male Infertility: Treatment of Azoospermia with Sperm Retrieval and Intracytoplasmic Sperm Injection. (PDF, 66 KB) Human Reproduction, 1997.
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If natural selection is the primary error correction mechanism that prevents random mutations on the Y chromosome, then fertility treatments for men with abnormal sperm (in particular ICSI) only defer the underlying problem to the next male generation. New Concepts in Operative Andrology: A Review. (PDF, 7 MB) International Journal of Andrology, 2000. This results in normal or enhanced follicular recruitment without the risk of multiple ovulation and ovarian hyperstimulation syndrome. Ideally, the cause of the infertility is reversible and then conception can result from natural sex.
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The elevated temperature hinders the maturation process of sperm, which develop best in an environment that is slightly cooler than body temperature. Medications, treatments, and drugs Some drugs can affect fertility in a woman. A postcoital test to determine if sperm are able to move through the cervical mucus is still performed by some clinicians. On the day of ovulation, a mucus sample is taken after intercourse.
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Signs of Potential Infertility in Women In women, changes in the menstrual cycle and ovulation may be a symptom of a disease related to infertility. Orchitis The most common cause of acquired testicular failure in adults is viral orchitis, such as that caused by the mumps virus, echovirus, or group B arbovirus. The woman may be given a low dose of ovary stimulating hormones. Normal uterine implantation can therefore not occur. The predictive value of hysterosalpingography for tubal and peritoneal infertility factors. Most couples skip the invasive laparoscopic surgery and do treatments with intrauterine inseminations and then IVF if inseminations are not successful. Nevertheless, scientists have found these stem cells, which may generate new oocites in postnatal conditions. Apparently there are only 0,014% of them (this could be an explanation of why they were not discovered until now). Apparent Fertility of Human Spermatozoa from the Caput Epididymidis. (PDF, 4 MB) Journal of Andrology, 1989. Treatment The cost of infertility treatment is high [34]. Age: Male fertility starts to fall after 40 years. Prolactin stimulates milk production during breastfeeding. Microsurgical Reversal of Tubal Sterilization: Factors Affecting Pregnancy Rate, with Long-term Follow-up. (PDF, 2 MB) Obstetrics & Gynecology, 1984. The following is a list of hormonal disorders which can disrupt male infertility: Hyperprolactinemia: Elevated prolactin--a hormone associated with nursing mothers, is found in 10 to 40 percent of infertile males. Mild elevation of prolactin levels produces no symptoms, but greater elevations of the hormone reduces sperm production, reduces libido and may cause impotence. This condition responds well to the drug Parlodel (bromocriptine).
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See also
Couses of Infertility in Female
Infertility Treatment Apollo Hospital
Infertility Treatments and Causes