Ericsson Method of Gender Selection















The Silverman Center for Gender Selection

Dr. Silverman is a pioneer in the field of gender selection. For the last 18 years, Dr. Silverman has been offering the Ericsson Method for gender selection in Manhattan and Scarsdale, NY.

In 1984, Dr. Silverman established the first unit for IVF outside of a university center.

Now, he is able to offer in vitro fertilization in combination with preimplantation genetic diagnosis for gender selection.

The Ericsson Method of
Gender Selection

Scientists have known for many years that sperm carrying an X chromosome produce females and sperm carrying a Y chromosome produce males. In the early 70's, scientists discovered that sperm samples with high concentrations of either X or Y bearing sperm could be obtained.

In 1975, Ronald J. Ericsson, Ph.D. began clinical studies to determine whether enriched sperm samples would result in offspring of a desired gender. The results were very encouraging and today this procedure is widely accepted by the scientific community. Currently, the Ericsson Method is used in approximately 50 centers in the United States and in many centers worldwide.

How does it work?

Dr. Ericsson devised patented methods by which X and Y sperm can be separated through filtering processes. Sperm are "layered" over a column of human serum albumin and they swim down the gradient where they are collected in the bottom layer.

The fraction of sperm that contain the male (Y) bearing sperm are used for insemination if a boy is desired. It is effective 70-75% of the time. The fraction of sperm that contain the female (X) bearing sperm are used for insemination if a girl is desired. It is effective 70-72% of the time.

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Frequent Questions
Review

Intrauterine Insemination
Definition and Explanation

Fertility Medications
Used in IUI and IVF

Dr. Silverman's Study
Review

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Overall, approximately 70-75% of the couples participating in gender selection have a baby of their chosen gender. Over five thousand healthy babies have been born using this method.

Publications

In 2002, Dr. Silverman and Dr. Ericsson published a study in the journal, Human Reproduction, entitled "Female Sex Selection Using Clomiphene Citrate and Albumin Separation of Sperm", which examined the effect of combining the Ericsson Method with Clomid .

They demonstrated a significantly increased probability of having a girl when Clomid is given to patients selecting for a girl.

The Silverman Center for Gender Selection

The Ericsson Method of Gender Selection

The Ericsson Method of
Gender Selection