Gender Selection (Sex Selection)

Gender selection is a technique which allows couples to increase the odds of delivering a child of a particular sex. As discussed above, certain medical indications may exist which require gender selection in order to ensure the well-being of a child (see PGD/sex-linked disorders). Couples without a specific sex-linked genetic mutation may pursue gender selection for the purpose of family balancing.

Gender selection can be performed with a variety of techniques, which vary in accuracy and success. The simplest method is the Ericksson sperm washing/insemination protocol, which is easy to perform and affordable, but achieves limited accuracy. Using the Ericksson method sperm is suspended in a special washing solution and then "spun" in a centrifuge for several minutes, allowing for a separation between X-bearing sperm (which lead to a female) and Y-bearing sperm (which would result in a male) based on different density gradients. Because this separation is not absolute but rather contains an overlap between a population of X-bearing and Y-bearing sperm, this technique can result in inaccuracy. Couples choosing the Ericksson method for gender selection look to give themselves an advantage towards one gender over the other, rather than a clear choice. 

A more complex method of sperm selection uses the Microsort® technology. In this protocol, X-chromosome bearing sperm is separated from Y-chromosome bearing sperm using a flow cytometer. Accuracy of the Microsort® technology is limited and depends on the gender desired (female more accurate than male). Since the amount of sex-selected sperm available after sorting is often too little for insemination to be successful, in vitro fertilization is generally the procedure performed in conjunction with the Microsort® technique. Unfortunately, despite encouraging accuracy results for gender selection, the Microsort® technique failed to receive FDA approval, and the company who initially conceived the technique was forced to terminate its clinical trial, making this technology unavailable as of April 2011.

The most accurate method for gender selection available today involves preimplantation genetic diagnosis (PGD). PGD may be combined with either the Ericksson and/or the Microsort® technique(s) to improve sperm selection, however differs from the abovementioned protocols in that it allows definitive determination of an embryo's gender prior to implantation in the uterus. After embryos are conceived through IVF, each embryo is biopsied prior to embryo transfer, and a specific chromosomal test is applied in order to determine gender (XX=female, or XY=male). Other chromosomal abnormalities may also be ruled out with the biopsy. Then, chromosomally normal embryos of the desired gender (only female embryos, for example), are transferred into the uterus. Accuracy rates reach 99% or higher. The technique is safe and highly successful.

Located in Southern California, and serving a highly diverse ethnic population with large cultural and traditional backgrounds, often with unique family balancing needs, the California Center for Reproductive Health (CCRH) has become a leading gender selection Center in Los Angeles and its periphery. CCRH is proud to offer the latest innovations in sex selection to patients in the Greater Los Angles area and beyond.

To find out more information about gender selection at our Center, please call 866.998.8225 (toll-free), or e-mail us atinfo@center4reproduction.com

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Eliran Mor, MD • Encino, Santa Monica, Valencia & West Hollywood, CA

Reproductive Endocrinologist located in Encino, Santa Monica, Valencia & West Hollywood, CA • Irene Woo, MD

Doctor Mor received his medical degree from Tel Aviv University-Sackler School of Medicine in Israel. He completed a four-year residency in Obstetrics and Gynecology at New York Methodist Hospital in Brooklyn, New York. Subsequently, Dr. Mor completed a three-year fellowship in Reproductive Endocrinology and Infertility at the University of Southern California. Doctor Mor is Board Certified in both Reproductive Endocrinology/Infertility and Obstetrics and Gynecology. Throughout his career Dr. Mor has researched many topics in infertility and human reproduction, including polycystic ovary syndrome (PCOS); emergency contraception; neuroendocrinology; insulin resistance; male factor infertility; donor sperm insemination; tubal factor infertility; IVF stimulation protocols; congenital uterine anomalies; tubal gamete/embryo transfer (GIFT/ZIFT/TET); pregnancy at advanced reproductive age; and hormone replacement therapy (HRT), and continues to do so today. He is a member, in excellent standing, of multiple prestigious medical societies, including the American Society of Reproductive Medicine (ASRM), the Pacific Coast Reproductive Society (PCRS), the Society of Laparoendoscopic Surgeons (SLS), and the American College of Obstetricians and Gynecologists (ACOG), and remains a Clinical Instructor at USC.

Doctor Mor is one fertility expert who is constantly striving to stay on the cutting-edge of fertility treatments and human reproduction. In addition to monthly Journal Club meetings/publication review sessions and educational seminars/lectures, Dr. Mor attends at least two major Reproductive Endocrinology/Infertility meetings each year in an effort to present his patients with the latest in innovative reproductive care. Only interventions that have been tested and validated through multiple good studies are adopted in Dr. Mor’s practice, in an effort to administer safe and effective treatments to achieve a healthy pregnancy.

A true “patients’ doctor,” Dr. Mor is and will be your physician throughout your fertility journey! All consultations, after-hour inquiries, pelvic examinations, ultrasound examinations, diagnostic procedures, assisted reproductive procedures (egg retrievals, embryo transfers...), and surgical procedures, if needed, will be performed by Dr. Mor. Involvement in every aspect of your fertility care and complete micromanagement of your treatment makes Dr. Mor your ideal partner in your path to becoming pregnant.

See Dr. Mor's Publications

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California Center for Reproductive Health

Doctor Mor received his medical degree from Tel Aviv University-Sackler School of Medicine in Israel. He completed a four-year residency in Obstetrics and Gynecology at New York Methodist Hospital in Brooklyn, New York. Subsequently, Dr. Mor completed a three-year fellowship in Reproductive Endocrinology and Infertility at the University of Southern California. Doctor Mor is Board Certified in both Reproductive Endocrinology/Infertility and Obstetrics and Gynecology. Throughout his career Dr. Mor has researched many topics in infertility and human reproduction, including polycystic ovary syndrome (PCOS); emergency contraception; neuroendocrinology; insulin resistance; male factor infertility; donor sperm insemination; tubal factor infertility; IVF stimulation protocols; congenital uterine anomalies; tubal gamete/embryo transfer (GIFT/ZIFT/TET); pregnancy at advanced reproductive age; and hormone replacement therapy (HRT), and continues to do so today. He is a member, in excellent standing, of multiple prestigious medical societies, including the American Society of Reproductive Medicine (ASRM), the Pacific Coast Reproductive Society (PCRS), the Society of Laparoendoscopic Surgeons (SLS), and the American College of Obstetricians and Gynecologists (ACOG), and remains a Clinical Instructor at USC.

Doctor Mor is one fertility expert who is constantly striving to stay on the cutting-edge of fertility treatments and human reproduction. In addition to monthly Journal Club meetings/publication review sessions and educational seminars/lectures, Dr. Mor attends at least two major Reproductive Endocrinology/Infertility meetings each year in an effort to present his patients with the latest in innovative reproductive care. Only interventions that have been tested and validated through multiple good studies are adopted in Dr. Mor’s practice, in an effort to administer safe and effective treatments to achieve a healthy pregnancy.

A true “patients’ doctor,” Dr. Mor is and will be your physician throughout your fertility journey! All consultations, after-hour inquiries, pelvic examinations, ultrasound examinations, diagnostic procedures, assisted reproductive procedures (egg retrievals, embryo transfers...), and surgical procedures, if needed, will be performed by Dr. Mor. Involvement in every aspect of your fertility care and complete micromanagement of your treatment makes Dr. Mor your ideal partner in your path to becoming pregnant.

See Dr. Mor's Publications


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We invite you to join our family as we look to expand yours!

Doctor Mor is a Board Certified Reproductive Endocrinology/Infertility expert with extensive experience in the most advanced fertility treatments available. Under his leadership, CCRH has become renowned for superior reproductive care, receiving rave reviews year after year. The Center is a boutique practice with exceptionally personalized service, customized and individually-tailored to each person or couple's needs with unmatched results.

Great emphasis is placed on proper testing and accurate
diagnosis, allowing for safe and effective treatments to achieve the ultimate outcome – a healthy baby!

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Professional Affiliations/Resources

The physicians and staff of the California Center for Reproductive Health are dedicated to patient education and care. The Center is affiliated with several prestigious medical societies and organizations aimed at educating both healthcare professionals and patients and at improving patient care. The following is a list of professional affiliations:

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Words from our patients

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