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This may reflect an unknown immunological incompatibility or other unknown problem with fertilization or implantation. Regrettably, this often leads to untruly high expectations of assisted reproduction techniques (ART) [40]. One of the best known is the HFEA – The UK's regulator for fertility treatment and embryo research. Stem cell therapy[edit] Nowadays, there are several treatments (still in experimentation) related with stem cell therapy.

Radiation therapy: If this is aimed near the reproductive organs, it can increase the risk of fertility problems. Prolonged estrus may be caused by ovarian cysts that produce estrogen, functional ovarian tumors, or exogenous estrogens (including human transdermal hormone replacement therapy). In some cases, the cause of infertility or subfertility could not be suspected from the history taking and clinical examination. Infertility treatments are expensive and often not covered by insurance-this could deter lower Source : Demographic data evaluation.: fertility measures PPT Presentation Summary : COVENANT UNIVERSITY DEPT.

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Women who have a body weight 10% to 15% below normal may have reduced fertility. They can also carry out some basic tests on both partners to see if there is an identifiable reason for not having achieved a pregnancy. Results of Microsurgical Vasoepididymostomy: Role of Epididymis in Sperm Maturation. (PDF, 3 MB) Human Reproduction, 1989.

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8 Women in group I typically present with amenorrhea and low gonadotropin levels, most commonly from low body weight or excessive exercise. Have you had any sexually transmitted infections or abnormal pap smears? A Modern Approach to Male Infertility. (PDF, 2 MB) Serono Symposia, Insights Into Infertility Newsletter, 1997. In this case, your doctor may recommend surgically extracting sperm from part of your reproductive tract to help you to conceive.

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Tubal occlusion is a cause of infertility because an ovulated egg is unable to be fertilized by sperm or to reach the endometrial cavity. Further investigations may be requested according to the clinical presentation and the results of preliminary tests. In particular, small bowel obstruction poses the most significant problem.[30] The use of surgical humidification therapy during laparoscopic surgery may minimise the incidence of adhesion formation.[32] Other techniques to reduce adhesion formation include the use of physical barriers such as films or gels, or broad-coverage fluid agents to separate tissues during healing following surgery.[30] Robotic laparoscopic surgery[edit] A laparoscopic robotic surgery machine. The Use of Epididymal Sperm in Assisted Reproduction. (PDF, 8 MB) Chapter from textbook, Frontiers in Endocrinology: Perspectives on Assisted Reproduction, 1994. Ovulation disorders can be due to: Premature ovarian failure: The ovaries stop working before the age of 40 years. Patients with azoospermia or severe oligospermia seeking assisted reproductive techniques should be screened. Carcinoma in the Bladder Left Behind. (PDF, 3 MB) The Journal of Urology, 1973. Structural abnormalities in the uterus: these can affect the cervix or the uterine corpus.  Anomalies can be anatomical (septate uterus, T-shaped uterus, etc.) or pathologies that generate embryo implantation issues or issues with how the pregnancy progresses: polyps, endometritis, Asherman's syndrome - synechiae or adherences of the walls of the uterine cavity - or myomas, a benign tumour that generates anatomical distortion and makes getting pregnant complicated (this is one of the most common pathologies but does not necessarily cause fertility issues). When the magic moment arrives, about 150 million sperm are ejaculated in a half-teaspoon of semen through the penis. Even with the testis shielded, radiation therapy below the diaphragm may lead to infertility due to the release of reactive oxygen free radicals. The farther from the scrotum, and the longer duration that the testicle resides outside the scrotum, the greater the likelihood of infertility.