Unexplained Infertility Symptoms

What is Unexplained Infertility?

Unexplained infertility is a diagnosis made when a couple has failed to conceive a child after at least 12 months of frequent and unprotected intercourse, even though both partners' medical tests are normal with no identifiable cause. While frustrating, unexplained infertility and pregnancy chances remain positive with medical intervention. Most unexplained infertility treatment options include lifestyle modification to assisted reproductive technology, where IVF success and IUI treatment provide high levels of unexplained infertility success rate in both male and female.

Types of Unexplained Infertility

• Primary Unexplained Infertility: It is the situation when a couple has never conceived despite frequent intercourse and normal test results.
• Secondary Unexplained Infertility: This is the inability to get pregnant after having at least one pregnancy that was successfully executed before, regardless of the result of the pregnancy.

Unexplained Infertility Causes

Though the causes of the unexplained infertility have not been discovered during routine screening, several minor factors can be considered:

• Egg and Sperm Quality: Minor issues with the egg's genetics or the ability of the sperm to penetrate the egg.
• Implantation Failure: This occurs when an embryo is healthy, but the uterine lining is not ready at the appropriate moment.
• Mild Endometriosis: Small deposits of tissue that do not show on scans but interfere with unexplained infertility and pregnancy chances.
• Immune Factors: The immune system can mistakenly inhibit the fertilisation of the egg or the implantation process.

Symptoms of Unexplained Infertility

In the case of most couples, unexplained infertility has no physical manifestation.

• Inability to Conceive: The primary indicator is the failure to become pregnant after 12 months (6 months in the case of women above 35) of regular intercourse.
• Normal Menstrual Cycles: Most women experience regular periods and confirmed ovulation, making the lack of conception unexpected.
• Normal Male Function: There is no sign of sexual dysfunction or abnormal sperm parameters on the male partner's side.
• Asymptomatic Nature: Unlike in the case of other diseases, there is no pelvic pain or hormonal red flags with the process of unexplained infertility diagnosis.

Diagnosis and Treatments of Unexpected Infertility

The unexplained infertility diagnosis is reached through a process of elimination:

• Comprehensive Testing: Evaluation includes hormonal testing, semen analysis, ovulation assessment, and imaging such as ultrasound or hysterosalpingography.
• Unexplained Infertility IUI Treatment: Timed insemination is often used as the first line of treatment for unexplained infertility, and it is often paired with ovulation-stimulating medicine.
• Unexplained Infertility IVF Success: If IUI is unsuccessful, IVF is extremely effective since it eliminates many unknown causes of unexplained infertility by allowing fertilisation to occur in the laboratory.
• Lifestyle Optimisation: BMI, stress and nutrition addressed to enhance unexplained infertility and pregnancy odds through natural clinical intervention that must be followed before applying clinical intervention.

According to Dr Rajitha Yarlagadda, Fertility Specialist at Nova IVF, Bengaluru, unexplained infertility refers to cases where a woman ovulates regularly, both fallopian tubes are open and the sperm count is normal, yet pregnancy does not occur. It may affect around 10–30% of couples experiencing infertility. While scans can confirm ovulation, they cannot determine egg quality, fertilisation capacity or sperm quality. Doctors may initially recommend medication and timed intercourse for a few months. If pregnancy does not occur, injections or IVF may be considered. During IVF, eggs and sperm can be assessed in the laboratory and embryos monitored before transferring those considered suitable for transfer.

FAQs

1. What is the unexplained infertility IVF success rate?

IVF can be the most successful treatment for unexplained infertility since it allows embryologists to observe fertilisation directly. The success rates are often high, equivalent to or greater than those for other infertility diagnoses, depending on the woman's age.

2. Can lifestyle changes help with an unexplained infertility diagnosis?

Yes. Dietary improvements, stress reduction and healthy weight can help improve unexplained infertility and pregnancy success by providing individuals with better conditions to start or maintain the reproductive environment of both male and female partners.

3. When should we move from IUI to IVF?

The number of cycles typically recommended by doctors to treat unexplained infertility using IUI is 3 to 6. In the event of failure to conceive, the next step to consider is IVF to see further into the causes of unexplained infertility.

4. Are there specific unexplained infertility tests we might have missed?

Standard tests cover the basics. However, if you experience multiple unexplained failed cycles of fertility treatment, your specialist may recommend sperm DNA fragmentation tests or Endometrial Receptivity Analysis (ERA).

5. Is unexplained infertility permanent?

No. Many couples with this diagnosis go on to have healthy babies through unexplained infertility treatment options like IUI, IVF, or sometimes even natural conception after lifestyle adjustments.