Infertility: Causes, Tests, and Treatment Options

Understanding Infertility

Infertility is the difficulty in conceiving naturally—becoming pregnant—despite having regular unprotected sex when not using contraception. It is a common condition affecting many couples worldwide, and understanding its causes, diagnosis, and treatment options is essential for making informed decisions about your reproductive health.

What Can Cause Fertility Problems?

Infertility can result from various factors affecting either partner or both. Since at least 25% of infertile couples have more than one factor causing infertility, it is very important to evaluate all factors that may affect both you and your partner. The causes of infertility are diverse and may be related to physical health, hormonal imbalances, lifestyle factors, or unexplained reasons.

Female Infertility Causes

Women may experience infertility due to several conditions affecting their reproductive system:

• Ovulation disorders: Problems with the release of eggs from the ovaries, often related to hormonal imbalances.
• Tubal factor infertility: Blocked, damaged, or scarred fallopian tubes that prevent egg and sperm from meeting. Tubal factors account for about 35% of all infertility problems.
• Endometriosis: A condition where tissue similar to the uterine lining grows outside the uterus, affecting fertility.
• Uterine disorders: Abnormalities in the uterus, such as fibroids or polyps, that may interfere with implantation.
• Cervical or uterine factor: Conditions within the cervix may impact fertility, though they are rarely the sole cause.
• Pelvic adhesions: Scar tissue in the pelvis that can distort reproductive organs.
• Age-related infertility: With increasing age, the quality of eggs decreases and fertility problems are more likely to occur.

Male Infertility Causes

Male factor infertility can arise from various conditions affecting sperm production or function:

• Low sperm count: Reduced number of sperm in semen.
• Poor sperm motility: Sperm that do not swim effectively to reach and fertilize the egg.
• Abnormal sperm morphology: Sperm with irregular shape or structure.
• Erectile dysfunction or ejaculation problems: Difficulties that may interfere with natural ability to conceive.
• Genital injury or surgery: Prior trauma or surgical procedures affecting reproductive function.
• Infections: Previous or current genital infections that may impact fertility.
• Medication or substance use: Certain drugs or recreational substances that may affect sperm production.

When to See a Doctor About Infertility

It is recommended that you seek medical evaluation if:

• You have been trying to conceive for one year without success (for couples where the woman is under 35 years old).
• You have been trying to conceive for six months without success (for couples where the woman is 35 years old or older).
• You have a known condition that may affect fertility.
• You have concerns about your reproductive health or sexual function.

Early consultation with a healthcare provider allows for timely diagnosis and access to appropriate treatments, improving your chances of achieving a successful pregnancy.

The Initial Consultation

During your first visit, your physician will take a comprehensive medical and reproductive history. Your doctor will ask about:

• The frequency and regularity of your menstrual period
• Pelvic pain, abnormal vaginal bleeding, or discharge
• History of pelvic infections
• Medical illnesses and medications you are taking
• Prior pregnancies, miscarriages, and operations
• Methods of contraception used
• How long you have been trying to conceive
• Frequency of sexual intercourse
• Use of lubricants during intercourse
• Family history of birth defects or genetic conditions
• Any pain or difficulty with sexual intercourse

Your partner will also be asked questions concerning prior genital injury, surgery, infections, drug and medication use, history of fathering other children, and medical illnesses. This comprehensive approach ensures that all relevant factors affecting your fertility are identified and addressed.

Tests for Infertility

Diagnostic testing is essential for identifying the underlying causes of infertility and determining the most appropriate treatment approach. Several standardized tests are recommended as part of a thorough fertility evaluation.

Female Infertility Tests

• Pelvic examination: A physical examination to assess the health of reproductive organs and identify any abnormalities.
• Blood tests: Hormone level assessments, including FSH (follicle-stimulating hormone), LH (luteinizing hormone), and progesterone, to evaluate ovarian function.
• Ovulation tests: Methods to determine whether ovulation is occurring regularly.
• Hysterosalpingogram (HSG): A special x-ray procedure that evaluates the fallopian tubes and uterus to determine if the tubes are open and patent.
• Transvaginal ultrasound: An ultrasound examination to visualize the uterus, ovaries, and other pelvic structures.
• Uterine biopsy: A sample of uterine tissue to check for hormone levels needed for pregnancy.
• Pap smear: A cervical screening test, particularly important if you have had prior cervical procedures or abnormal results.

Male Infertility Tests

• Semen analysis: A laboratory test that evaluates sperm count, motility (movement), and morphology (shape) to assess male fertility potential.
• Physical examination: Assessment of the genital organs for abnormalities or signs of infection.
• Hormonal testing: Blood tests to measure testosterone and other hormones affecting sperm production.
• Specialized sperm testing: Additional tests such as sperm-mucus interaction studies in selected cases.

Unexplained Infertility

If you have tried to get pregnant for a year or more and have not succeeded, and your doctor has not found an obvious problem during fertility investigations, you receive the diagnosis of unexplained infertility. Couples with unexplained infertility may have problems with egg quality, fertilization, genetics, tubal function, or sperm function that are difficult to diagnose and/or treat. The diagnosis of unexplained infertility does not mean that treatment will not be effective, as many couples do achieve pregnancy with appropriate interventions.

Some General Advice

Beyond medical interventions, lifestyle modifications and general health practices can support your fertility journey:

Nutrition and Health

• Eat a healthy diet: Consume a balanced diet rich in fruits, vegetables, whole grains, lean proteins, and healthy fats to support overall reproductive health.
• Maintain a healthy weight: Both underweight and overweight conditions can affect fertility in both men and women.
• Avoid alcohol and recreational drugs: These substances can negatively impact fertility in both partners.
• Start prenatal vitamins: Begin taking prenatal vitamins containing folic acid before conception to support early fetal development.

Medical Preparation

• Review medications: Discuss with your healthcare provider which medications may be unsafe in pregnancy and may require adjustments.
• Screening for infections: Be screened to assess your risk of exposure to viruses that may affect your pregnancy.
• Vaccination status: Ensure your vaccinations are up to date before conception.
• Genetic screening: You may be screened for genetic illnesses you might carry that do not affect you but may be passed on to a child.

Sex and Fertility

Optimizing sexual practices can enhance fertility prospects for couples trying to conceive naturally. Regular sexual intercourse during the fertile window—typically the five days before and the day of ovulation—increases the chances of conception. The frequency of sexual intercourse is also important; couples are encouraged to have sexual intercourse every two to three days throughout the menstrual cycle to ensure sperm presence during the fertile window.

Avoid using lubricants during intercourse, as many commercial lubricants can impair sperm function. If lubrication is necessary, discuss fertility-friendly options with your healthcare provider.

Address any concerns about sexual function, such as difficulty with developing or maintaining an erection, pain during intercourse, or ejaculation problems, as these issues may interfere with your natural ability to conceive. Your healthcare provider can offer guidance and treatment options to address these concerns.

Infertility Treatment Options

The treatments for infertility depend on the underlying cause and individual circumstances. Treatment may involve medicines, surgical operations, or assisted conception techniques. The choice of treatment should be based on prognosis and individual patient factors.

Fertility Medications

Fertility drugs can help regulate ovulation in women or improve sperm production in men. Common medications include:

• Clomiphene citrate: Stimulates ovulation in women.
• Gonadotropins: Hormones that directly stimulate the ovaries or assist sperm production.
• Metformin: Used in women with polycystic ovary syndrome (PCOS) to regulate ovulation.
• Bromocriptine: Used to lower prolactin levels if elevated.

Intrauterine Insemination (IUI)

IUI involves placing washed sperm directly into the uterus during the fertile window. Fertility drugs and IUI have been used in couples with unexplained infertility with limited success. IUI may be recommended for couples with male factor infertility, cervical factor infertility, or unexplained infertility.

In Vitro Fertilization (IVF)

IVF is an assisted reproductive technology where eggs are retrieved from the ovaries, fertilized with sperm in a laboratory, and embryos are transferred to the uterus. If no pregnancy occurs within three to six treatment cycles of fertility drugs and IUI, IVF may be recommended, and has been shown to be the most effective treatment for unexplained infertility.

Intracytoplasmic Sperm Injection (ICSI)

ICSI is a specialized IVF procedure where a single sperm is injected directly into an egg. This technique is particularly useful for male factor infertility or cases where previous IVF fertilization rates were low.

Surgical Treatment

Surgical procedures may be recommended to address specific anatomical problems:

• Hysteroscopy: A minimally invasive procedure to visualize and treat uterine abnormalities such as fibroids or polyps.
• Laparoscopy: Used to diagnose and treat pelvic conditions such as endometriosis or adhesions.
• Tubal surgery: Procedures to repair blocked or damaged fallopian tubes.
• Vasectomy reversal: Surgical reversal of vasectomy in men who wish to restore fertility.

Age-Related Infertility Treatment

Possible treatments for age-related infertility in women include fertility drugs plus IUI or IVF. In cases where the treatments fail or are predicted to have a low chance of success, egg donation is an option. Egg donation has a high chance of success, regardless of your FSH level. More recently, embryo donation has also become a viable option for many couples.

Donor Options and Adoption

If sperm are absent or cannot be retrieved surgically, insemination with donor sperm may be considered if IUI is not successful or if you and your partner do not choose to undergo IVF. For couples who have not succeeded with fertility treatments or who choose to forgo treatment, adoption is another option.

Treatment Based on Prognosis

The guideline development group advises basing the decision to start active treatment on prognosis in couples with unexplained infertility. Couples presenting with unexplained infertility can get pregnant spontaneously. Models have been developed to predict the chance of spontaneous pregnancy, called prognosis. Important factors that influence your prognosis are the age of the female partner, the duration of your infertility, what previous treatments you underwent, and if you had previous pregnancies.

A good prognosis patient, for example, would be a young woman who has been experiencing infertility for a short period of time, who did not undergo fertility treatment, and has no previous pregnancies. Your healthcare provider can help determine your individual prognosis and recommend the most appropriate treatment approach.

Frequently Asked Questions (FAQs)

Q: How long should we try to conceive before seeking medical help?

A: It is recommended to seek medical evaluation after one year of trying to conceive for couples where the woman is under 35 years old, or after six months for couples where the woman is 35 years old or older.

Q: What is the most effective treatment for infertility?

A: The most effective treatment depends on the underlying cause of infertility. For unexplained infertility, IVF has been shown to be the most effective treatment, particularly if other treatments such as fertility drugs and IUI have not been successful over three to six cycles.

Q: Can lifestyle changes improve fertility?

A: Yes, lifestyle modifications such as eating a healthy diet, maintaining a healthy weight, avoiding alcohol and recreational drugs, managing stress, and getting regular exercise can support fertility in both men and women.

Q: What should we expect during fertility testing?

A: Fertility testing typically includes a medical history review, physical examination, blood tests to measure hormone levels, and imaging studies such as ultrasound or hysterosalpingogram. Additional tests may be recommended based on initial findings.

Q: Is infertility treatable?

A: Yes, infertility is often treatable. The success of treatment depends on identifying the underlying cause and choosing appropriate interventions. Many couples achieve pregnancy with medical or surgical treatment.

Q: What is unexplained infertility?

A: Unexplained infertility is diagnosed when couples have tried to conceive for one year or more without success, and standard fertility investigations have not identified an obvious cause. Treatment options such as IVF can still be effective for couples with this diagnosis.

Q: How often should we have sexual intercourse to increase chances of conception?

A: Couples are encouraged to have sexual intercourse every two to three days throughout the menstrual cycle, with particular emphasis on the fertile window (the five days before and the day of ovulation).

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medha deb

 

Medha Deb is an editor with a master's degree in Applied Linguistics from the University of Hyderabad. She believes that her qualification has helped her develop a deep understanding of language and its application in various contexts.

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