Category Archives: Dr. Zhang


Dr. Zhang’s Pick of the Month: The Difference Between Impotency and Male Infertility

Pick of the Month (3)Two key issues in men’s sexual and reproductive health are impotency and male fertility. Although the terms are occasionally used interchangeably, impotence and male infertility are distinct medical conditions. For both conditions, quality male care is available. About one third of the time, a couple’s inability to get pregnant can be attributed to the male partner.

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Under what circumstances do I need IVF treatment?

couplesAt New Hope Fertility Center in New York, I have encountered a few couples who, after a few years of trying to conceive and no infertility tests done, come and tell me that they wanted to do and are ready for an IVF treatment. When this situation happens, we explain to patients that not all infertile couples need to do IVF. First, we will need to check the semen quality. If it is poor quality, the woman does not need to have a tubal patency test undergoing IVF treatment. If the semen quality is poor, the sperm does not have the ability to naturally fertilize the egg. On the other hand, if the semen quality is good, the woman will need to have a tubal patency test. If the tubes are normal, they may consider artificial insemination; if the tubes are abnormal (or blocked), they may need IVF treatment.

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Dr. Zhang’s Pick of the Month: Who can benefit from PGS?

Pick of the MonthAccording to research, the miscarriage rate increases as a woman gets older. Women who are undergoing IVF treatment can benefit from Pre-implantation Genetic Screening (PGS). PGS evaluates an embryo to determine if it has the correct number of chromosomes.  Having too many or too few chromosomes is evidence of a genetic defect.  This test does not look for specific diseases, rather it aims to identify embryos that have an abnormal number of chromosomes.  As a woman ages, the chance of her having embryos with an abnormal number of chromosomes rises.

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One of the Best Fertility Doctors in New York

Finding the right fertility doctor is one of the most important steps of your fertility journey.  Your chosen doctor will be your partner in the journey to parenthood.  Selecting the right doctor will help to ensure that your needs are met and that you are treated as an individual.  For personalized attention, a focus on continual improvement, and a high success rate, the best doctor in NYC is Dr. John Zhang.shutterstock_108006539_small

Evidence of Dr. Zhang’s expertise and dedication to patient success can be seen in the following:

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Dr. John Zhang – The Doctor Who Understands You Emotionally and Linguistically

Fertility care can be a complicated discipline.  Couples that come to me for treatment aren’t just experiencing a physical issue.  Having children is an integral part of who we are.  Experiencing difficulty conceiving on your own can be devastating.  In order to completely care for a patient, it is important to address their physical, emotional, and mental needs.shutterstock_201672500

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Dr. John Zhang’s Work on Mitochondrial DNA transfers

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To learn more about my work on Mitochondrial DNA transfers, I invite you to read some of my written abstracts and research papers:

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Dr. Zhang’s Pick of the Month

Should you consider DHEA?  

A few words about an exciting new protocol.

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Hi, everyone. One of the hottest topics in IVF treatment right now is the use of DHEA (dehydroepiandrosterone) for patients who respond poorly to controlled ovarian stimulation. Up to 1 in 4 IVF cycles are characterized by poor ovarian response. “Poor responders,” as they’re known, suffer from Diminished Ovarian Reserve resulting in fewer oocytes and decreased rates of pregnancy.

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Dr. Zhang’s October Pick of the Month – Q&A

Hello everyone, I am writing at this time to further elaborate on some of the comments I received from my last post. Hope the adjacent text answers all your questions and takes our debate to new subjects. I truly love and appreciate all your feedback.

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Dr. Zhang’s October Pick of the Month

Hello everyone. I’m hoping to start making this blog a little bit more interactive and put some things out here for comments and debate. I’m encouraging everyone who stops by to leave a comment, question, or any other kind of feedback. I would love to hear from you!

One of the first hot topics that I wanted to post about are Array Comparative Genomic Hybridization (aCGH) and Time-Lapse monitoring via Embryoscope. I recently co-authored a pilot study that indicated that implantation and ongoing pregnancy rates improve when time-lapse monitoring is combined with aCGH in IVF patients undergoing preimplantation genetic screening.Read more: Dr. Zhang’s October Pick of the Month