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Microsurgery and Andrology. (PDF, 5 MB) Chapter from textbook, 1991. Normal seminal fructose concentration is 120-450 mg/dL, with lower levels suggesting ejaculatory duct obstruction or absence of the seminal vesicles. The fertilized embryo is then transferred to womb.

Problems in the uterus or fallopian tubes can prevent the egg from traveling from the ovary to the uterus, or womb. Mutations in the Cystic Fibrosis Gene in Patients with Congenital Absence of the Vas Deferens. (PDF, 5 MB) New England Journal of Medicine, 1995. Religious leaders' opinions on fertility treatments; for example, the Roman Catholic Church views infertility as a calling to adopt or to use natural treatments (medication, surgery, or cycle charting) and members must reject assisted reproductive technologies. It varies with the age (the optimal female age is between 23 and 39 years) and with body weight (the ideal body mass index is between 19 and 30). Premature Ejaculation: Is defined as an inability to control the ejaculatory response for at least thirty seconds following penetration.  Premature ejaculation becomes a fertility problem when ejaculation occurs before a man is able to fully insert his penis into his partner�s vagina.  Premature ejaculation can be overcome by artificial insemination or by using a behavioral modification technique called the �squeeze technique� which desensitizes the penis. 0 mm flexible plastic tube is inserted into the uterine cavity through the cervix and a small piece of endometrial tissue is sampled using suction.

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44 Therefore, a simple recommendation is for vaginal intercourse every two to three days to optimize the chance of pregnancy. Grading is as follows: Grade 0 – No movement Grade 1 – Sluggish movement Grade 2 – Slow movement in a poorly defined direction Grade 3 – Slow or curved forward movement Grade 4 – Fast movement straight forward  Patients with abnormal sperm motility should be evaluated for the following: Pyospermia Antisperm antibodies Varicocele Sperm ultrastructural abnormalities Partial ductal obstruction Sperm morphology The head, acrosome, mid piece, and tail of individual spermatozoa are analyzed with phase-contrast microscopy after fixation with Papanicolaou stain. If endometriosis is found, it can be surgically removed by various methods, and its removal may lead to a decrease in pain as well as improvement in the ability to conceive naturally. The enzyme aromatase is responsible for this conversion, and is found primarily in adipose tissue. In some cases, simply removing the polyp solves infertility. Chemotherapy: Some types may significantly reduce sperm count.

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Pregnancy after Vasovasostomy for Vasectomy Reversal: A Study of Factors Followed for 10 Years. (PDF, 3 MB)Human Reproduction, 1989. Certain medical conditions such as diabetes, thyroid disease and anemia may also affect fertility. This measurement is called the antral follicle count and may correlate with fertility potential. Estimating the prevalence of infertility in Canada [published correction appears in Hum Reprod. Clean, Intermittent Self-catheterization in the Treatment of Urinary Tract Disease. (PDF, 2 MB) The Journal of Urology, 1972. Studies on Testicular Biopsies from Vasectomized Men. (PDF, 18 MB) Chapter 21 from Vasectomy: Immunologic and Pathophysiologic Effects in Animals and Man, 1979.

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If necessary, they refer patients to a fertility clinic or local hospital for more specialized tests. Successful Pregnancy and Delivery after Calcium Ionophore Oocyte Activation in a Normozoospermic Patient with Previous Failed Fertilization after Intracytoplasmic Sperm Injection. (PDF, 57 KB) Fertility and Sterility, 2003. Talk to your doctor if you experience the following: skin issues reduced sex drive facial hair growth thinning hair weight gain 5. The Relationship of Abnormal Semen Values to Pregnancy Outcome. (PDF, 770 KB) Chapter 10 from textbook, 1992. Microscopic Technique for Reversal of Vasectomy. (PDF, 3 MB) Surgery, gynecology & obstetrics, 1976. 8 Couples with unexplained infertility may want to consider another year of intercourse before moving to more costly and invasive therapies, such as assisted reproductive technology. Causes of Sterility in Women In women, the classification of possible causes is much more complex. Ovulation of the egg occurs approximately 2 weeks before the start of the next period.