Male and Female Infertility: Understanding the Difference
When pregnancy does not happen as expected, people sometimes assume that the problem must be with the woman. This assumption can cause unnecessary worry, blame and delays in finding answers.
In reality, fertility difficulties can involve the female reproductive system, the male reproductive system, both partners or factors that cannot be clearly identified.
Understanding the possible differences between male and female infertility is an important first step towards a fair and informed fertility evaluation.
Can Infertility Affect Both Men and Women?
Yes. Infertility is a reproductive health condition that can affect people of any sex.
For pregnancy to occur naturally, several processes need to work together. An egg must develop and be released, sperm must be able to reach and fertilise the egg, and the resulting embryo must develop and implant in the uterus.
Problems at different stages can make conception more difficult.
The World Health Organization recognises male factors, female factors, combined factors and unexplained infertility. This is why assessing both partners, when applicable, can be important rather than assuming the cause lies with one person.
What Is Female Infertility?
Female infertility refers to fertility difficulties associated with factors involving the ovaries, fallopian tubes, uterus, hormones or other aspects of reproductive health.
Possible causes include the following.
1. Ovulation problems
Ovulation is the release of an egg from an ovary. If ovulation is irregular or does not occur, there may be fewer opportunities for conception.
Polycystic ovary syndrome (PCOS) is one condition that can affect ovulation. Other hormonal or medical conditions may also play a role.
2. Age-related changes
Female fertility generally changes with age. The number of eggs remaining in the ovaries decreases over time, and egg quality also changes.
These changes can affect the likelihood of conception and the risk of miscarriage. Age does not determine an individual's outcome, but it is an important factor in fertility assessment.
3. Fallopian tube problems
The fallopian tubes help sperm reach the egg and allow the early embryo to travel towards the uterus.
Blocked or damaged tubes may interfere with these processes. Previous pelvic infections, endometriosis or certain surgeries can be relevant.
4. Conditions affecting the uterus
Some uterine conditions, including certain fibroids or structural differences, may affect fertility or pregnancy outcomes. The significance depends on the type, size and location of the condition.
5. Endometriosis and other reproductive conditions
Endometriosis can be associated with fertility difficulties. Other reproductive or hormonal conditions may also contribute.
Having a particular diagnosis does not automatically mean that pregnancy is impossible. Assessment helps determine whether the condition is likely to be relevant and what options may be appropriate.
What Is Male Infertility?
Male infertility refers to fertility difficulties associated with sperm production, sperm function, the reproductive tract, ejaculation or related medical factors.
It may be present even when a man feels healthy and has no obvious symptoms.
1. Low sperm count
A semen analysis may show fewer sperm than expected. A low sperm count can reduce the chance that sperm will reach and fertilise an egg, although the result alone does not determine whether natural conception is possible.
2. Sperm movement
Sperm motility describes how sperm move. Movement is important because sperm need to travel through the female reproductive tract to reach the egg.
Reduced motility may affect the likelihood of fertilisation, depending on the overall semen results and other factors.
3. Sperm shape
Sperm morphology refers to the size and shape of sperm. A semen analysis assesses morphology alongside other measures.
An abnormal morphology result should not be interpreted in isolation. A clinician considers the full report and the couple's circumstances.
4. Problems with sperm production
Some medical conditions affect the testicles' ability to produce sperm. Hormonal disorders, certain genetic conditions, varicocele and some medical treatments may be relevant.
In some cases, sperm may be absent from the semen. This is known as azoospermia and requires appropriate assessment to investigate possible causes.
5. Blockages or ejaculation difficulties
Blockages in the reproductive tract or problems with ejaculation can affect the delivery of sperm. Some of these conditions may be treatable, depending on the cause.
6. Medicines and lifestyle factors
Certain medicines and substances can affect sperm production or function. Anabolic steroids, for example, can suppress sperm production. Smoking, excessive alcohol use, obesity and some environmental exposures may also be relevant.
Anyone concerned about a medicine's effect on fertility should speak to their clinician before changing or stopping prescribed treatment.
What If Both Partners Have Fertility Problems?
Sometimes, more than one factor contributes to difficulty conceiving.
For example, one partner may have a condition affecting ovulation while the other has a semen-analysis result that needs further assessment. In other cases, each partner's initial results may appear reassuring, but pregnancy still does not occur.
This is why fertility assessment is often approached as a shared process. Looking at both partners can provide a more complete picture and help avoid unnecessary assumptions.
It is not a question of whose fault it is. The aim is to understand the factors involved and identify appropriate next steps.
What Is Unexplained Infertility?
Unexplained infertility is a term used when the standard fertility evaluation does not identify a clear explanation for the difficulty conceiving.
It does not mean that the problem is imaginary or that nothing is wrong. It means that the tests performed so far have not identified a specific cause.
The evaluation may need to be reviewed in light of age, reproductive history, how long pregnancy has been attempted and which investigations have been completed.
We explore this topic in more detail in our Dream Baby article, Unexplained Infertility.
How Are Male and Female Fertility Assessed?
The investigations recommended depend on the individual's history, symptoms and circumstances. Not everyone needs every test.
Common assessments for women
Depending on the situation, an evaluation may include:
A review of menstrual cycles and reproductive history
Assessment of ovulation when indicated
Blood tests for selected hormones
Pelvic ultrasound
Tests to assess whether the fallopian tubes are open, when appropriate
Further investigation of a suspected reproductive condition
Tests such as AMH, FSH and antral follicle count can provide information about aspects of ovarian reserve, but they cannot independently determine whether someone will become pregnant naturally.
Common assessments for men
A semen analysis is often an important first investigation. It assesses features such as semen volume, sperm concentration, movement and shape.
Depending on the result and medical history, additional assessment may involve a physical examination, selected hormone tests or further investigations.
One semen-analysis result does not always provide the complete picture. A clinician may recommend repeating the test or investigating a particular finding.
Why Should Both Partners Be Evaluated?
When fertility assessment is needed, evaluating both partners can help identify relevant factors sooner.
It can also prevent unnecessary procedures or assumptions based on incomplete information.
The appropriate evaluation is individualised. Your doctor should explain which tests are recommended, what they can reveal, what their limitations are and how the results may influence decisions.
When Should You Seek Medical Advice?
General guidance recommends considering a fertility evaluation after:
12 months of trying to conceive if the woman is under 35 and there are no known concerns.
6 months if the woman is aged 35–40.
Prompt assessment if the woman is over 40.
An earlier appointment may be appropriate if either partner has a known reproductive condition, irregular or absent periods, a history of reproductive surgery or pelvic infection, concerns about sperm health, or another relevant medical issue.
These are general guidelines. You can seek advice sooner if you are worried.
Can Male and Female Infertility Be Treated?
Treatment depends on the cause, age, medical history and personal preferences.
Options may include treatment for an underlying medical condition, medicines to support ovulation, selected surgical procedures, intrauterine insemination (IUI), in vitro fertilisation (IVF) or other approaches.
Some people may be able to conceive without fertility treatment, while others may need medical assistance. In certain cases, a clear cause cannot be identified.
No treatment guarantees pregnancy. A qualified fertility specialist can explain the potential benefits, limitations, risks and costs of the options relevant to your circumstances.
Frequently Asked Questions
Is female infertility more common than male infertility?
Infertility can involve male factors, female factors, both partners or unexplained factors. It is not appropriate to assume that the woman is responsible simply because pregnancy has not occurred.
Can a man have infertility without symptoms?
Yes. Some sperm-related conditions do not cause obvious symptoms. A semen analysis and clinical assessment may be recommended when fertility evaluation is appropriate.
Can a woman have infertility if her periods are regular?
Yes. Regular periods may suggest that ovulation is occurring, but they do not confirm that the fallopian tubes, uterus and other aspects of fertility are normal.
Does a normal semen analysis guarantee fertility?
No. A semen analysis provides useful information but does not guarantee that conception will occur. Results need to be interpreted alongside the wider clinical picture.
Should both partners attend the fertility consultation?
If possible, attending together can make it easier to share medical history, discuss questions and understand the next steps. If that is not possible, the clinician can advise how each partner's assessment can be arranged.
Where to Go Next
Continue learning with these Dream Baby articles:
What Is Infertility? Understanding the Causes, Types and When to Seek Help
Causes of Infertility: Common Reasons in Women and Men
Primary vs Secondary Infertility: What's the Difference?
What Is a Semen Analysis?
Fertility Tests for Women
A Final Word
Fertility difficulties can be emotionally challenging, particularly when people feel pressure to identify someone to blame. In reality, fertility is influenced by many factors, and both partners may need to be considered during an evaluation.
Getting reliable information and appropriate medical advice can help you understand your situation and make informed decisions.
Medical information disclaimer: This article is for general educational purposes only and is not a substitute for individual medical advice, diagnosis or treatment. It has not been medically reviewed by a Dream Baby doctor. Please consult a qualified healthcare professional for advice specific to your circumstances.
References
World Health Organization (WHO). Infertility. https://www.who.int/news-room/fact-sheets/detail/infertility
National Institute of Child Health and Human Development (NICHD). What are some causes of infertility? https://www.nichd.nih.gov/health/topics/infertility/conditioninfo/causes