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A uterus capable of developing and sustaining the conceptus to maturity. For conception, sperm must reach the cervix, penetrate the cervical mucus, migrate up the uterus to the fallopian tube, undergo capacitation and the acrosome reaction to digest the zona pellucida of the oocyte, attach to the inner membrane, and release its genetic contents within the egg. The use of Epididymal and Testicular Sperm for ICSI. (PDF, 1 MB) From IX World Congress on In Vitro Fertilization and Alternated Assisted Reproduction, 1995. Sertoli cells are columnar, with irregular basal nuclei that have prominent nucleoli and fine chromatin. The testicles will be checked for lumps or deformities, and the shape and structure of the penis will be examined for abnormalities. For women, being underweight and having extremely low amounts of body fat are associated with ovarian dysfunction and infertility and they have a higher risk for preterm birth.

Another requirement for male fertility is a normal ductal system. Fertility treatment with donor eggs is usually done using IVF. When the eggs are mature, your doctor collects them with a device called a vaginal ultrasound probe. This allows for the diagnosis and treatment of conditions such as endometriosis with one procedure. This is where no cause can be identified in either the woman or man.

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The use of Epididymal and Testicular Sperm for ICSI. (PDF, 1 MB) From IX World Congress on In Vitro Fertilization and Alternated Assisted Reproduction, 1995. Blockage of the ejaculatory duct: Sperm can be extracted directly from the testicles and injected into an egg in the laboratory. In ZIFT, your doctor places the fertilized eggs -- at this stage called zygotes -- into your fallopian tubes within 24 hours. Testicular Transplantation and Autotransplantation. (PDF, 8 MB) Chapter 22 of textbook, Extracorporeal and Microvascular Surgery, 1982.

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Eating disorders such as anorexia nervosa are also associated with extremely low BMI. In some cases, the cause of infertility or subfertility could not be suspected from the history taking and clinical examination. Some suggest that the number of times a couple has intercourse should be reduced to increase sperm supply, but this is unlikely to make a difference. 18  If the semen analysis result is abnormal, further evaluation is indicated (Table 36–8,10,19,20). Medications Testosterone replacement therapy, long-term anabolic steroid use, cancer medications (chemotherapy), certain antifungal medications, some ulcer drugs and certain other medications can impair sperm production and decrease male fertility. When a man ejaculates and releases semen through the penis, the seminal fluid, or semen, helps transport the sperm toward the egg.

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The use of Epididymal and Testicular Sperm for ICSI. (PDF, 1 MB) From IX World Congress on In Vitro Fertilization and Alternated Assisted Reproduction, 1995. The etiology is unknown but is probably multifactorial. Treatment of Tubal and Peritoneal Factors The treatment of tubal-factor infertility underwent major changes, especially during the last quarter of the century when microsurgery became available. [126, 127] Tubal reconstruction was the only hope for those patients before assisted reproductive therapy became available. In contrast, anovulation usually manifests itself as irregularity of menstrual periods, that is, unpredictable variability of intervals, duration, or bleeding. These abnormalities can also cause irregular bleeding between menstrual cycles. As the amount of adipose tissue increases, there is more aromatase available to convert androgens, and serum estradiol levels increase. If the epididymis is blocked, sperm may not be ejaculated properly.