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Sperm Donor Programs at Manhattan CryoBank

Sperm Donor Catalog at Manhattan CryoBank

Sperm Cryopreservation at Manhattan CryoBank

Testicular Tissue Cryopreservation at Manhattan Cryobank

Sperm, Egg & Embryo Banking at Manhattan Cryobank

Cryogenic Tank Rentals at Manhattan Cryobank

Gender (sex) Pre-Selection

Manhattan CryoBank utilizes several procedures to increase the probability of pre-selecting the gender of a child. The most commonly used technique is the Ericcson method developed by Dr. Ronald Ericsson of Gametrics Limited in the early 1980’s.

What Determines the Sex of a Child?
The individual sperm that fertilizes an individual egg is the sole determinant of the sex of the child. If that sperm carries an "X" chromosome, it will result in a female. If it carries a "Y" chromosome, a male will result.

How Does the Ericsson Technique Work?
The Ericsson technique is based on the fact that sperm carrying the Y chromosome move somewhat faster than sperm carrying the X chromosome. A laboratory process is used in which sperm must swim through a sticky protein liquid (albumin), the assumption being that in a given period of time, more Y-bearing than X-bearing sperm will speed through the albumin. By repeating this process, a sperm concentrate is finally obtained which contains a relatively high percentage of Y-bearing or X-bearing sperm (depending on which procedure is selected) than the original sample. The resulting concentrate can then be used by a medical doctor or qualified nurse to perform an intrauterine insemination.

Patients must clearly understand that this technique is only a way to try to increase the odds of conceiving either a male or a female child. You will have a better chance achieving the desired sex of your child using this method than if you used no method at all. But just how much better chance, it is clearly impossible for anyone to say. There are no guarantees in using this method for sex-selection.

Patients must also understand that there is no guarantee that any particular insemination using sex-selected sperm (or any semen sample, for that matter) will result in conception or that if conception occurs, that the pregnancy will be carried to term.

A washed specimen can be safely kept for a couple of hours prior to insemination. We suggest that the insemination take place within one hour of completing the gender pre-selection procedure.

Always consult your doctor or health-care provider before making important decisions about your heath or pregnancy.

Please contact our office for further information or to schedule an appointment.

Gender (sex) Pre-Selection

Manhattan CryoBank utilizes several procedures to increase the probability of pre-selecting the gender of a child. The most commonly used technique is the Ericcson method developed by Dr. Ronald Ericsson of Gametrics Limited in the early 1980’s.

What Determines the Sex of a Child? The individual sperm that fertilizes an individual egg is the sole determinant of the sex of the child. If that sperm carries an "X" chromosome, it will result in a female. If it carries a "Y" chromosome, a male will result.

A washed specimen can be safely kept for a couple of hours prior to insemination. We suggest that the insemination take place within one hour of completing the gender pre-selection procedure.

What Determines the Sex of a Child?
The individual sperm that fertilizes an individual egg is the sole determinant of the sex of the child. If that sperm carries an "X" chromosome, it will result in a female. If it carries a "Y" chromosome, a male will result.