Female Infertility: Causes, Diagnosis, and When to Seek Treatment
Infertility is experienced by the couple, but it is often investigated one partner at a time — and in most cases, that investigation begins with the woman. What is frequently missing from this process is a clear, jargon-free explanation of what female infertility actually is, what causes it, how it is diagnosed, and what the treatment pathway looks like. This guide is written to provide exactly that — because informed patients make better decisions and navigate the fertility journey with far more confidence.
Female Infertility: Causes, Diagnosis, Treatment & When to Seek Help
Female infertility is defined as the inability to conceive after:
- 12 months of regular, unprotected intercourse for women under 35 years, or
- 6 months for women 35 years or older,
when the underlying cause is related to the female partner's reproductive health.
Female factors contribute to approximately 40–50% of infertility cases. In another 20–30% of couples, both male and female factors are involved. This is why, at Yellow IVF, both partners are evaluated simultaneously rather than assessing one partner after the other.
The Most Common Causes of Female Infertility
| Cause | Approximate Prevalence | Primary Treatment |
|---|---|---|
| Ovulatory disorders (PCOS, thyroid disorders, hyperprolactinaemia) | 25–30% | Ovulation induction ± IUI or IVF |
| Fallopian tube damage or blockage | 25–30% | IVF |
| Endometriosis | 15–30% | Surgery ± IVF |
| Uterine abnormalities (fibroids, polyps, adhesions) | 10–15% | Hysteroscopy ± IVF |
| Diminished ovarian reserve (Low AMH) | 10–15% | IVF using own or donor eggs |
| Unexplained infertility | 10–25% | IUI followed by IVF if required |
Ovulatory Disorders
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Ovulatory disorders are among the most common and most treatable causes of female infertility.
Conditions such as:
- Polycystic Ovary Syndrome (PCOS)
- Thyroid disorders
- Hyperprolactinaemia (high prolactin levels)
can interfere with the hormonal signals required for normal ovulation.
Fortunately, many of these conditions can be effectively managed with medication before fertility treatment begins.
Fallopian Tube Blockage
Blocked or damaged fallopian tubes prevent the egg and sperm from meeting naturally.
Because fertilisation cannot occur inside the body, IVF becomes the most effective treatment, as it bypasses the fallopian tubes entirely.
Learn more: IVF Treatment
Endometriosis
Endometriosis can affect fertility in several ways by:
- Creating inflammation within the pelvis
- Forming ovarian cysts (endometriomas)
- Causing scar tissue and adhesions
- Reducing implantation potential
Treatment depends on disease severity and may involve laparoscopic surgery, IVF, or a combination of both.
Learn more: Endometriosis Treatment
Uterine Abnormalities
Certain abnormalities inside the uterus may interfere with embryo implantation, including:
- Endometrial polyps
- Submucosal fibroids
- Intrauterine adhesions (scar tissue)
Many of these conditions can be corrected through hysteroscopy, a minimally invasive procedure.
Learn more: Hysteroscopy Procedure
How Is Female Infertility Diagnosed?
A complete fertility evaluation can usually be completed within a single menstrual cycle.
Step 1 — Blood Tests
Hormonal evaluation may include:
- AMH (Anti-Müllerian Hormone)
- Day 2/3 FSH
- LH
- Estradiol
- Prolactin
- TSH (Thyroid Stimulating Hormone)
- Androgen profile (when PCOS is suspected)
Step 2 — Pelvic Ultrasound
Ultrasound helps assess:
- Uterine structure
- Ovarian appearance
- Antral Follicle Count (AFC)
- Fibroids
- Ovarian cysts
Step 3 — HSG (Hysterosalpingography)
An HSG is an X-ray performed using contrast dye to determine whether:
- The fallopian tubes are open
- The uterine cavity has a normal shape
Step 4 — Additional Investigations (When Needed)
Depending on your symptoms and initial findings, your fertility specialist may recommend:
- Hysteroscopy for detailed evaluation of the uterine cavity
- Laparoscopy for suspected endometriosis or pelvic adhesions
Related Procedures
Important: Not every patient requires every investigation. Your Yellow IVF fertility specialist recommends only the tests that are most appropriate for your medical history and fertility goals.
Treatment Pathway Based on Diagnosis
| Starting Point | Recommended Treatment |
|---|---|
| Ovulatory disorders (PCOS, thyroid disorders), open tubes, normal semen | Ovulation induction ± IUI |
| Mild unexplained infertility (Age under 35) | IUI (3–6 cycles) |
| Blocked fallopian tubes | IVF |
| Moderate to severe endometriosis | Laparoscopy ± IVF |
| Low AMH with viable own eggs | Individualised IVF protocol |
| Very low AMH or Premature Ovarian Insufficiency | Donor Egg IVF |
Frequently Asked Questions
If I have PCOS, do I automatically need IVF?
No.
Many women with PCOS successfully conceive using:
- Ovulation induction medications
- Timed intercourse
- IUI
IVF is generally recommended only if these treatments have not been successful after several cycles or when additional fertility factors are present.
What happens if my fallopian tubes are blocked?
When both tubes are blocked, IVF is usually the most effective treatment because fertilisation takes place outside the body before the embryo is transferred into the uterus.
Your fertility specialist will confirm tubal status using an HSG before recommending treatment.
Can I still conceive with low AMH?
Yes.
A low AMH level indicates a reduced egg reserve, but it does not mean pregnancy is impossible.
Many women with low AMH achieve pregnancy using carefully customised IVF protocols.
When ovarian reserve is extremely low or ovarian function has ceased, Donor Egg IVF offers some of the highest pregnancy success rates in assisted reproduction.
Learn more: Donor IVF
When should I stop waiting and consult a fertility specialist?
General recommendations include:
- Under 35 years: After 12 months of trying
- 35 years or older: After 6 months
- 38 years or older or with a known fertility condition: Seek evaluation immediately
Early assessment provides more treatment options and often improves outcomes.
About the Author
Dr. Sonu Taxak
MBBS • MD (Obstetrics & Gynaecology)
Fellowship in Reproductive Medicine & IVF
Founder & Director, Yellow IVF
- 10+ years of clinical fertility practice
- 1,000+ IVF cycles supervised
- 86%+ clinical success rate across the Yellow IVF network
View Profile: /about-yellow-ivf/
Final Thoughts
Female infertility is common, and in most cases, there is a clear and effective treatment pathway.
The right treatment depends on identifying the underlying cause through a structured fertility assessment. While every patient's journey is unique, early diagnosis allows your fertility specialist to recommend the treatment most likely to achieve pregnancy.
At Yellow IVF, every fertility journey begins with a comprehensive evaluation so that treatment decisions are based on evidence—not assumptions.
Book Your Fertility Assessment at Yellow IVF
A comprehensive female infertility evaluation designed to identify the cause of infertility and create a personalised treatment plan.
Useful Links
- Female Infertility Treatment: /female-infertility/
- All Fertility Treatments: /fertility-treatment/
- Book a Consultation: /contact-yellow-ivf/
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