Ask Our Doctors – Archive

Our Medical Directors are outstanding physicians that you will find to be very personable and compassionate, who take care to ensure that you have the most cutting-edge fertility treatments at your disposal. This is your outlet to ask your questions to the doctors.

19,771 Comments

  1. Hi Dr Sher, why do you do a hysteroscopy before every FET? I understand the shape and structure of the uterus does not change. If there has no been event in a few years would you still need it? What are you looking for when doing a hysterscopy?

    • I do not do this! I do require that either a hysteroscopy or hysterosonogram be done within 18 months of doing an embryo transfer.

      Geoff Sher

  2. Hi Dr Sher, you previously advised with regards to endo immune biopsy ….. “With the exception of measuring endometrial cytokines, I do not believe endometrial-immune tests to be useful!”

    Is it sufficient to measure cytokines via blood tests or does the endo immune biopsy provide additional useful data? Thanks so much!

    • You can do blood cytokines, but a blood K-562 target cell test done in a “competent” setting, is the gold standard in my opinion.

      Good luck!

      Geoff Sher

  3. Hi Dr Sher, what are your thoughts on IL vs IVIG? How do you know which is more suitable for a patient?
    Thanks so much!

    • I rarely any longer prescribe IVIG. Intralipid is equally successful.

      Central to making a diagnosis of an immunologic implantation dysfunction (IID) is a need for the appropriate interpretation of Natural Killer Cell Activity (NKa). In this regard, one of the commonest and most serious errors, is interpret the blood concentration of natural killer cells as being relevant. Rather it is the activity (toxicity) of NK cells that matters as mentioned. This activity can best be measured using the blood, K-562 target cell test (the gold standard). and/ or endometrial biopsy for cytokine activity.
      With the K-562 test, the most important consideration is the percentage of target cells “killed” in the “native state”. In most cases a level of >10% killing should be regarded with suspicion and >12% overtly abnormal. In addition to reporting the result of the K-562 test, in the “native state” (without adding, Immunoglobulin-G (IVIG) or Intralipid (IL) which many Laboratories erroneously do to try and determine whether either or both of these immune therapies would have a therapeutic benefit or is/are unlikely to be of clinical value. The entire premise upon which this assertion is based, is in my opinion flawed. Clinically such NK cell deactivation can only be significantly affected in vivo as it takes more than a week following infusion to occur. Thus, what happens to the percentage of target cells killed with the K-562 test, by adding IVIG or IL is in my opinion irrelevant
      Another way to assess endometrial NKa is by measuring TH-1 and TH-2 cytokines in endometrial tissue derived through biopsy.TH-1 cytokines kill the trophoblast (the root system of the embryo). Thus if is an excess of TH-1 cytokine activity is found with/without a disruption in the TH-1: TH-2 ratio, this points to NK cell activation.
      There are basically two causes of immunologic implantation dysfunction (IID), a) Autoimmune (85%) & , b) Alloimmune (15%). The former occurs when the body reacts to its own tissue and the latter (far less common) when the male and female partners share certain genotypic similarities involving DQ alpha and HLA genes. In both cases IID results in rejection of the pregnancy due to uterine Natural Killer (NK) Cell and T-cell activation leading to the release of an excessive amount of TH-1 cytokines. These, “toxins” attack the embryo’s root system (trophoblast), killing the cells and causing implantation to fail.
      Autoimmune Implantation Dysfunction: Autoimmune implantation dysfunction, most commonly presents with presumed “infertility” due to such early pregnancy losses that the woman did not even know she was pregnant in the first place. Sometimes there as an early miscarriage. Tests required are: a) blood levels of all IgA, IgG and IgM-related antiphospholipid antibodies (APA’s) directed against six or seven specific phospholipids, b) both antithyroid antibodies (antithyroid and antimicrosomal antibodies), c) a comprehensive reproductive immunophenotype (RIP) and, c) most importantly, assessment of Natural Killer (NK) cell activity (rather than concentration) by measuring by their killing, using the K-562 target cell test and/or endometrial cytokine activity tests.
      It is important to recognize that currently there are only about 3 or 4 Reproductive Immunology Reference Laboratories in the U.S.A that, are capable of reliably analyzing the required elements with a sufficient degree of sensitivity and specificity. I use a Reprosource, a laboratory located in Boston,MA.
      Patients with Alloimmune implantation Dysfunction usually present with a history of unexplained (usually repeated) miscarriages or secondary infertility (where the woman conceived initially and thereupon was either unable to conceive again or started having repeated early miscarriages. However, it can also present as “presumed” primary infertility. Alloimmune dysfunction is diagnosed by testing the blood of both the male and female partners for matching DQ alpha genes and NK/CTL activation. It is important to note that any DQ alpha match (partial or complete) will only result in an IID when there both a DQa/HLA match exists along with NK cell activation. With the exception of cases where both partners have a total (absolute DQa match and treatment requires the use of sperm from a non-matching sperm donor, about 90% of cases alloimmune implantation will have a partial match where 1: 2 embryos will match the woman’s DQa genotype and half will not. In cases of an alloimmune dysfunction (with associated NKa), treatment with IL or IVIG will in my opinion, will not protect against a matching embryo being rejected. It can only clear the NK environment for an embryo that does not match the woman’s DQa genotype. For this reason, it is my opinion that only 1 embryo should be transferred at a time because, given the fact that i:2 embryos will match, transferring >1 embryo at a time creates a risk that the matching embryo will evoke a local NKa/’cytokine response that will “muddy the water” for both. Thus, in cases of a “partial” DQa match I recommend against transferring more than a single embryo at a time.

      I strongly recommend that you visit http://www.DrGeoffreySherIVF.com. Then go to my Blog and access the “search bar”. Type in the titles of any/all of the articles listed below, one by one. “Click” and you will immediately be taken to those you select. Please also take the time to post any questions or comments with the full expectation that I will (as always) respond promptly.

      •The IVF Journey: The importance of “Planning the Trip” Before Taking the Ride”
      •Controlled Ovarian Stimulation (COS) for IVF: Selecting the ideal protocol
      •IVF: Factors Affecting Egg/Embryo “competency” during Controlled Ovarian Stimulation (COS)
      •The Fundamental Requirements for Achieving Optimal IVF Success
      •Use of GnRH Antagonists (Ganirelix/Cetrotide/Orgalutron) in IVF-Ovarian Stimulation Protocols.
      •The Role of Immunologic Implantation Dysfunction (IID) & Infertility (IID): PART 1-Background
      •Immunologic Implantation Dysfunction (IID) & Infertility (IID): PART 2- Making a Diagnosis
      •Immunologic Dysfunction (IID) & Infertility (IID): PART 3-Treatment
      •Thyroid autoantibodies and Immunologic Implantation Dysfunction (IID) Why did my IVF Fail
      •Recurrent Pregnancy Loss (RPL): Why do I keep losing my Pregnancies
      •Genetically Testing Embryos for IVF
      •Staggered IVF
      •Staggered IVF with PGS- Selection of “Competent” Embryos Greatly Enhances the Utility & Efficiency of IVF.
      •Embryo Banking/Stockpiling: Slows the “Biological Clock” and offers a Selective Alternative to IVF-Egg Donation
      •Preimplantation Genetic Testing (PGS) in IVF: It should be Used Selectively and NOT be Routine.
      •IVF: Selecting the Best Quality Embryos to Transfer
      •Preimplantation Genetic Sampling (PGS) Using: Next Generation Gene Sequencing (NGS): Method of Choice.
      •PGS in IVF: Are Some Chromosomally abnormal Embryos Capable of Resulting in Normal Babies and Being Wrongly Discarded?
      •Immunologic Implantation Dysfunction: Importance of Meticulous Evaluation and Strategic Management 🙁 Case Report)
      •Intralipid and IVIG therapy: Understanding the Basis for its use in the Treatment of Immunologic Implantation Dysfunction (IID)
      •Intralipid (IL) Administration in IVF: It’s Composition; how it Works; Administration; Side-effects; Reactions and Precautions
      •Natural Killer Cell Activation (NKa) and Immunologic Implantation Dysfunction in IVF: The Controversy!
      •Natural Killer Cell Activation (NKa) and Immunologic Implantation Dysfunction in IVF: The Controversy!
      •Should IVF Treatment Cycles be provided uninterrupted or be Conducted in 7-12 Pre-scheduled “Batches” per Year.
      •A personalized, stepwise approach to IVF
      •Nutritional supplements in IVF
      ______________________________________________________
      ADDENDUM: PLEASE READ!!
      INTRODUCING SHER FERTILITY SOLUTIONS (SFS)
      Founded in April 2019, Sher Fertility Solutions (SFS) offers online (Skype/FaceTime) consultations to patients from > 40 different countries. All consultations are followed by a detailed written report presenting my personal recommendations for treatment of what often constitute complex Reproductive Issues.

      If you wish to schedule an online consultation with me, please contact my assistant (Patti Converse) by phone (800-780-7437/702-533-2691), email (concierge@SherIVF.com) or, enroll online on then home-page of my website (www.SherIVF.com).

      PLEASE SPREAD THE WORD ABOUT SFS!

      Geoff Sher

  4. Hi Dr Sher, what are your thoughts about uterine washes to treat endometritis?

    • I do not believe it to be useful!

      Geoff Sher

  5. Dear Dr. Sher, I have a question about follicle growth during IVF treatment . Do we know what could be the reason for gradually decreasing number of follicle from day one of stimulation to day of trigger shot. It happened to me and I started my treatment with good number of follicle and less than half were retrieved. I lost them through out this treatment.
    Do we ovulate some of them during stimulation treatment ?

    • It could be premature luteinization and be linked to the protocol used for ovarian stimulation and/or its implementation.

      Premature luteinization (“premature LH surge”) occurs when prior to the planned initiation of the hCG trigger, a progressive rise in LH, irreversibly compromises follicle and egg development and maturation. It is not a sporadic isolated event. It comes as a culmination of a series ovarian events, occurring mostly in susceptible women (i.e. usually older women and those with diminished ovarian reserve. It is more likely to occur when the protocol used for ovarian stimulation has failed to maintain LH activity at a low level prior to and throughout the ovarian stimulation process. Once it occurs in any given stimulation cycle it cannot be switched off by changing the stimulation in progress or by administering GnRH antagonists (e.g. Ganirelix/Cetrotide/Orgalutron) midway in the cycle in the hope that this could rescue the eggs under development. It is my opinion, once premature luteinization commences, the cycle is doomed and outcome is doomed to fail. The condition increases the likelihood of premature ovulation, failed release of eggs during needle-guided egg retrieval (so called “empty follicle syndrome” and the incidence of egg/embryo “incompetence” (chromosomal aneuploidy).
      This situation is most commonly seen in older women and in women who have severely diminished ovarian reserve. In many cases its effect can be prevented through implementation of strategic and individualized protocols for controlled ovarian stimulation (COS) coupled with optimizing the type, timing and dosage of the “hCG trigger shot.”
      Normally, following optimal ovarian stimulation, the “trigger shot” is given for the purpose of it initiating meiosis (reproductive division) that is intended to halve the number of chromosomes from 46 to 23 within 32-36 hours. The hCG trigger also enables the egg to signal the “cumulus cells” that bind it firmly to the inner wall of the follicle (through enzymatic activity), to loosen or disperse, so that the egg can detach and readily be captured at egg retrieval (ER).
      Older women, and women with diminished ovarian reserve, tend to have more biologically active LH in circulation. LH causes production of male hormone (androgens, predominantly testosterone), by ovarian connective tissue (stroma/theca). A little testosterone is needed for optimal follicle development and for FSH-induced ovogenesis (egg development). Too much LH activity compromises the latter, and eggs so affected are far more likely to be aneuploid following meiosis.
      Women with the above mentioned conditions often have increased LH activity and are thus more likely to produce excessive ovarian testosterone. It follows that sustained, premature elevations in LH or premature luteinization (often referred to as a “premature LH surge”) will prejudice egg development. Such compromised eggs are much more likely to end up being complex aneuploid following the administration of the hCG trigger, leading to fruitless attempts at retrieval and the so called “empty follicle syndrome.”
      The developing eggs of women who have increased LH activity (older women, and women with diminished ovarian reserve) are inordinately vulnerable to the effects of protracted exposure to LH-induced ovarian testosterone. Because of this, the administration of medications that provoke further pituitary LH release (e.g., clomiphene and Letrozole), drugs that contain LH or hCG (e.g., Menopur), or protocols of ovarian stimulation that provoke increased exposure to the woman’s own pituitary LH (e.g., “flare-agonist protocols”) and the use of “late pituitary blockade” (antagonist) protocols can be prejudicial.
      The importance of individualizing COS protocol selection, precision with regard to the dosage and type of hCG trigger used, and the timing of its administration in such cases cannot be overstated. The ideal dosage of urinary-derived hCG (hCG-u) such as Novarel, Pregnyl and Profasi is 10,000U. When recombinant DNA-derived hCG (hCG-r) such as Ovidrel is used, the optimal dosage is 500mcg. A lower dosage of hCG or Ovidrel can, by compromising meiosis, increase the risk of egg aneuploidy, and thus of IVF outcome.

      ____________________________________
      Please visit my new Blog on this very site, www. SherIVF.com, find the “search bar” and type in the titles of any/all of the articles listed below, one by one. “Click” and you will immediately be taken to those you select. Please also take the time to post any questions or comments with the full expectation that I will (as always) respond promptly

      •Controlled Ovarian Stimulation (COS) for IVF: Selecting the ideal protocol
      •IVF: Factors Affecting Egg/Embryo “competency” during Controlled Ovarian Stimulation(COS)
      •The Fundamental Requirements For Achieving Optimal IVF Success
      •Ovarian Stimulation for IVF using GnRH Antagonists: Comparing the Agonist/Antagonist Conversion Protocol.(A/ACP) With the “Conventional” Antagonist Approach
      •Anti Mullerian Hormone (AMH) Measurement to Assess Ovarian Reserve and Design the Optimal Protocol for Controlled Ovarian Stimulation (COS) in IVF.
      •The “Biological Clock” and how it should Influence the Selection and Design of Ovarian Stimulation Protocols for IVF.
      • A Rational Basis for selecting Controlled Ovarian Stimulation (COS) protocols in women with Diminished Ovarian Reserve (DOR)
      •Diagnosing and Treating Infertility due to Diminished Ovarian Reserve (DOR)
      •Controlled Ovarian Stimulation (COS) in Older women and Women who have Diminished Ovarian Reserve (DOR): A Rational Basis for Selecting a Stimulation Protocol
      •Human Growth Hormone Administration in IVF: Does it Enhances Egg/Embryo Quality and Outcome?
      •The BCP: Does Launching a Cycle of Controlled Ovarian Stimulation (COS). Coming off the BCP Compromise Response?
      •Blastocyst Embryo Transfers Should be the Standard of Care in IVF
      •Frozen Embryo Transfer (FET) versus “Fresh” ET: How to Make the Decision
      •Frozen Embryo Transfer (FET): A Rational Approach to Hormonal Preparation and How new Methodology is Impacting IVF.
      •Staggered IVF: An Excellent Option When. Advancing Age and Diminished Ovarian Reserve (DOR) Reduces IVF Success Rate
      •Embryo Banking/Stockpiling: Slows the “Biological Clock” and offers a Selective Alternative to IVF-Egg Donation.
      •Preimplantation Genetic Testing (PGS) in IVF: It Should be Used Selectively and NOT be Routine.
      •Preimplantation Genetic Sampling (PGS) Using: Next Generation Gene Sequencing (NGS): Method of Choice.
      •PGS in IVF: Are Some Chromosomally Abnormal Embryos Capable of Resulting in Normal Babies and Being Wrongly Discarded?
      •PGS and Assessment of Egg/Embryo “competency”: How Method, Timing and Methodology Could Affect Reliability
      •Treating Out-of-State and Out-of-Country Patients at Sher-IVF in Las Vegas:
      •Traveling for IVF from Out of State/Country–
      •A personalized, stepwise approach to IVF
      •How Many Embryos should be transferred: A Critical Decision in IVF.
      •The Role of Nutritional Supplements in Preparing for IVF
      •Premature Luteinization (“the premature LH surge): Why it happens and how it can be prevented.
      •IVF Egg Donation: A Comprehensive Overview

      ___________________________________________________
      ADDENDUM: PLEASE READ!!
      INTRODUCING SHER FERTILITY SOLUTIONS (SFS)
      Founded in April 2019, Sher Fertility Solutions (SFS) offers online (Skype/FaceTime) consultations to patients from > 40 different countries. All consultations are followed by a detailed written report presenting my personal recommendations for treatment of what often constitute complex Reproductive Issues.

      If you wish to schedule an online consultation with me, please contact my assistant (Patti Converse) by phone (800-780-7437/702-533-2691), email (concierge@SherIVF.com) or, enroll online on then home-page of my website (www.SherIVF.com).

      PLEASE SPREAD THE WORD ABOUT SFS!

      Geoff Sher