Avner Hershlag — Explained by Medical Evidence, Not Myths

Avner Hershlag is a physician associated with the field of reproductive endocrinology and infertility, including in vitro fertilization (IVF), fertility preservation and research-based fertility care. Understanding what this specialty involves can help people assess fertility information thoughtfully and make informed decisions with qualified clinicians.

Avner Hershlag: an evidence-based overview

Avner Hershlag is a physician recognized in the field of reproductive endocrinology and infertility. This medical subspecialty focuses on diagnosing and treating conditions that can affect the ability to conceive, as well as helping patients consider fertility preservation and assisted reproductive technologies such as in vitro fertilization (IVF).

Public information about a doctor may include clinical roles, academic work, research publications and professional society involvement. These details can be useful, but they should not be interpreted as a promise of a particular treatment result. Fertility care is highly individual, and a suitable plan depends on a person’s medical history, age, test findings, reproductive goals and preferences.

When looking for reliable information about any fertility specialist, patients can use independent sources such as medical licensing boards, board-certification databases, hospital profiles and peer-reviewed publications. A consultation remains the best setting to discuss whether a clinician’s expertise and treatment approach fit a patient’s needs.

What reproductive endocrinology and infertility means

Reproductive endocrinology and infertility is a specialist area within obstetrics and gynecology. Physicians in this field evaluate the hormones, organs and reproductive processes involved in ovulation, sperm production, fertilization, implantation and early pregnancy. They may care for women, men and couples, as well as single people and LGBTQ+ individuals pursuing family building.

Common reasons for referral include difficulty conceiving, irregular or absent menstrual periods, recurrent pregnancy loss, suspected ovulation disorders, diminished ovarian reserve, endometriosis, blocked fallopian tubes and male-factor infertility. Some people also seek specialist advice before medical treatment that could affect fertility, including certain cancer therapies.

Specialist care does not always mean IVF is needed. Depending on the cause of infertility, options may include timing intercourse around ovulation, lifestyle support, medication to support ovulation, treatment of an underlying condition, intrauterine insemination (IUI), surgery in selected situations, or IVF. The benefits, limitations and possible risks of each option should be explained clearly before treatment begins.

Clinical areas commonly associated with fertility specialists

Fertility specialists may work across several connected areas of reproductive medicine. IVF is one of the best-known treatments. It generally involves stimulating the ovaries to develop eggs, collecting eggs in a procedure, fertilizing eggs with sperm in a laboratory, monitoring embryo development and transferring an embryo to the uterus when appropriate.

Fertility preservation is another important area. Egg, sperm or embryo freezing may be considered by people who wish to delay childbearing or who are preparing for treatments that may reduce fertility. The appropriateness and likely usefulness of preservation depend on timing, age, ovarian or testicular function, the planned medical treatment and personal circumstances.

Assessment may also involve evaluation of conditions such as polycystic ovary syndrome, endometriosis and thyroid or prolactin disorders when they affect reproductive health. Male fertility assessment is equally important and commonly includes a semen analysis and review of medical, surgical, lifestyle and medication factors. A balanced assessment helps avoid unnecessary delays and ensures that both partners, when applicable, are evaluated.

How fertility care is evaluated by medical evidence

Evidence-based fertility care combines clinical expertise with the best available research and the patient’s values. A careful evaluation typically begins with questions about menstrual cycles, previous pregnancies, medical conditions, medications, family history and how long pregnancy has been attempted. Testing is selected based on the individual situation rather than performed as a fixed checklist for everyone.

Possible investigations can include blood tests to assess ovulation or hormone patterns, ultrasound imaging of the ovaries and uterus, evaluation of the fallopian tubes, and semen analysis. Test results need careful interpretation. For example, ovarian reserve tests can help inform treatment planning, but they do not provide a complete prediction of natural conception or guarantee an IVF outcome.

High-quality care also includes informed consent. Patients should understand the likely purpose of each test or treatment, alternative options, the possibility of multiple cycles, treatment burdens and potential complications. It is reasonable to ask how recommendations are supported by guidelines, whether a treatment is routinely indicated for a specific diagnosis and what follow-up will be offered.

Separating fertility facts from common myths

One common myth is that infertility is always caused by a problem in the woman. In reality, fertility can be affected by female factors, male factors, factors involving both partners, or unexplained factors. A complete evaluation is therefore important, and semen testing is often a key early step when a couple is trying to conceive.

Another myth is that IVF guarantees pregnancy. IVF can help many people, but success is not assured. Outcomes vary according to age, egg and sperm quality, embryo factors, uterine health, the cause of infertility, previous treatment history and the specific clinical circumstances. Responsible clinicians discuss expected chances in a personalized way without making guarantees.

It is also inaccurate to assume that fertility preservation eliminates all future fertility uncertainty. Freezing eggs, sperm or embryos can preserve options, but no method can promise a future live birth. Patients benefit from clear counselling about timing, expected numbers of eggs or embryos, storage considerations and the medical and emotional aspects of future use.

Choosing and preparing for a fertility consultation

Patients considering an appointment with a reproductive endocrinologist can prepare by collecting relevant records. Useful documents may include prior laboratory results, pelvic ultrasound reports, surgery records, semen analyses, pregnancy records and a list of medications and supplements. Recording menstrual cycle dates and any symptoms can also help make the consultation more productive.

Questions may include: What are the possible reasons for the fertility concern? Which tests are necessary now? What are the reasonable treatment options? How much time is appropriate before changing course? What side effects or risks should be considered? Patients may also ask about emotional support, counselling and whether a second opinion would be helpful.

It is appropriate to look for transparent communication, respect for personal values and a plan that is tailored rather than rushed. Acibadem International’s multidisciplinary specialists and JCI-accredited hospitals support international patients seeking evaluation and treatment for reproductive health concerns, with care plans developed through consultation and appropriate testing.

When to seek medical care

A medical review is generally advisable after 12 months of regular unprotected intercourse without pregnancy for people under 35. For those aged 35 or older, assessment is commonly recommended after six months. People aged 40 or older, or those with known fertility concerns, may benefit from seeking advice sooner.

Earlier consultation is also sensible for irregular or absent periods, severe pelvic pain, a history of pelvic inflammatory disease, endometriosis, ectopic pregnancy, recurrent miscarriage, prior chemotherapy or radiation, testicular surgery, sexual dysfunction, or known low sperm counts. A clinician can determine which tests are appropriate and whether referral to a fertility specialist is needed.

Urgent medical care is important for severe abdominal or pelvic pain, heavy vaginal bleeding, fainting, fever with pelvic symptoms, or possible pregnancy with pain or bleeding, as these symptoms can sometimes require prompt assessment. Fertility information online can be educational, but it cannot replace individualized medical advice.

Frequently asked questions

Who is Avner Hershlag?

Avner Hershlag is known as a physician in reproductive endocrinology and infertility. This specialty includes the evaluation and treatment of infertility, hormonal reproductive concerns, IVF and fertility preservation options.

What does a reproductive endocrinologist do?

A reproductive endocrinologist investigates factors that may affect conception, including ovulation, the uterus and fallopian tubes, sperm factors and hormone-related conditions. They can recommend individualized options ranging from monitoring and medication to IUI, IVF or fertility preservation.

Does seeing a fertility specialist mean IVF is necessary?

No. IVF is only one of several possible treatments and may not be needed in every situation. The recommended approach depends on the cause of infertility, age, duration of trying to conceive, test results and personal goals.

How can patients verify a fertility doctor's credentials?

Patients can check a physician's medical license, board certification, hospital or clinic affiliation and professional profile through independent official sources. They can also ask directly about the clinician's training, scope of practice and the evidence supporting recommended treatment.

When should a couple seek fertility testing?

People under 35 commonly seek evaluation after 12 months of regular unprotected intercourse without pregnancy, while those aged 35 or older commonly seek help after six months. Earlier evaluation may be appropriate with irregular cycles, known reproductive conditions, prior cancer treatment or concerns about sperm health.

Can egg freezing guarantee a future pregnancy?

No. Egg freezing can preserve reproductive possibilities, but it cannot guarantee a future pregnancy or live birth. A fertility specialist can explain how age, egg number, egg quality and future reproductive circumstances affect potential outcomes.

References

• American Society for Reproductive Medicine
• American College of Obstetricians and Gynecologists
• Centers for Disease Control and Prevention
• National Institute of Child Health and Human Development
• World Health Organization

This article is for general information only and is not a substitute for professional medical advice. Please consult a qualified doctor about your individual situation.