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  4. Infertility

Infertility

Key facts

  • The term infertility is used if pregnancy does not happen after 12 months of regular unprotected sex.
  • There can be many causes of infertility including age, smoking or alcohol use or some diseases.
  • Having a healthy lifestyle can improve your fertility.
  • If you are infertile and want to have a child, there are several treatment options, like ovulation induction or IVF.
  • On this page

    • What is infertility?
    • What are the causes of infertility?
    • How do I talk about infertility with my partner?
    • How can I improve my chances of pregnancy?
    • What are the options for treating infertility?
    • When should I see a doctor about infertility?
    • Resources and support

    What is infertility?

    Infertility is being unable to have a successful pregnancy.

    For heterosexual couples, the term infertility is usually used when pregnancy does not happen after 12 months or more of regular unprotected sex. Having regular sex means having sex every 2 or 3 days throughout the month.

    Infertility affects about 1 in 6 Australian couples who are trying to fall pregnant.

    Infertility can be stressful and frustrating for everyone involved. Often, it takes some time to fall pregnant.

    Many couples with fertility problems go on to get pregnant, with or without fertility treatment.

    What are the causes of infertility?

    About 1 in 3 infertility problems are because of fertility issues with the female.

    About 1 in 3 infertility problems are because of fertility issues with the male.

    About 1 in 3 infertility problems are because of both female and male fertility issues or for unknown reasons.

    There can be many causes of infertility. Things that may cause infertility in both females and males can include:

    • smoking, alcohol, illegal drugs, or too much caffeine
    • being overweight or underweight
    • sexually transmitted infections (STIs) (Opens in new tab)
    • medical conditions (like diabetes, thyroid disease, or autoimmune diseases)
    • genetic causes
    • severe stress
    • some medicines

    Things that may cause infertility in females include:

    • older age
    • ovulatory disorders (which happen in about 40% of females with an infertility issue)
    • damaged or blocked fallopian tubes (Opens in new tab)
    • endometriosis
    • polycystic ovarian syndrome (Opens in new tab) (PCOS)
    • fibroids (Opens in new tab)
    • hormonal issues

    Things that may cause infertility in males include:

    • low sperm count
    • poor sperm movement or shape
    • ejaculation disorders (no sperm is released because of a blocked tube or ejaculation failure)
    • testicular problems (like undescended testicles (Opens in new tab) or testicular torsion (Opens in new tab))
    • hormonal issues
    • older age

    How do I talk about infertility with my partner?

    For couples trying for a baby, it is normal to feel uncertain, disappointed or anxious. It may affect both partners in the same way or in different ways.

    It's good for both of you to say how you feel and talk through any problems.

    If there are difficulties between you, talk to your doctor as a couple. Your doctor may refer you both to a counsellor.

    You can also use support services like Your Fertility (Opens in new tab) and Relationships Australia (Opens in new tab).

    How can I improve my chances of pregnancy?

    Age

    Age is an important factor for females. Your fertility starts to go down as you get older, particularly after the age of 35. Men may also have reduced fertility as they age.

    Some females freeze their eggs when they are younger. This can improve their chances of having a baby when they are older. Speak with your doctor if you want to know more about this.

    Weight

    Your weight can also affect your fertility. Being overweight or living with obesity changes your hormones. This makes it harder for you to be become pregnant.

    You should aim to be at a healthy weight. Being active can also help improve your fertility.

    Alcohol, smoking and recreational drugs

    Quitting smoking can improve your fertility. Smokers are more likely to be infertile than non-smokers. If you quit smoking, the negative effects on fertility are generally gone one year after you stop smoking.

    Alcohol and recreational drugs (like cocaine, heroin, cannabis, and ecstasy) have also been shown to affect fertility. They should be avoided if you want the best chance of fertility.

    Supplements

    For females, taking folate supplements can improve your chance of getting pregnant.

    What are the options for treating infertility?

    If you are infertile and want to have a child, there are many treatment options. The treatment your doctor suggests will depend on your situation.

    Females may be able improve their chance of falling pregnant if they know their most fertile days in the month.

    You can treat any underlying causes like endometriosis or sexually transmitted infections.

    You can use artificial insemination, or you can get a fertility treatment like in vitro fertilisation (IVF).

    You may consider surrogacy or adopting a child.

    Preparing for an appointment? See our tips on questions to ask your doctor.

    When should I see a doctor about infertility?

    Talk to your doctor if you're:

    • under 35 years and have been trying to get pregnant for 12 months or more
    • over 35 years and have been trying to get pregnant for 6 months

    See your doctor straight away if you would like to have a child and think you may have fertility problems. This may be because of endometriosis, polycystic ovary syndrome (PCOS), testicular problems or anything else.

    Your doctor may suggest a range of tests to work out why you are not getting pregnant.

    If the tests show that either you or your partner is infertile, there are fertility treatments available. These include ovulation induction or in vitro fertilisation (IVF).

    Resources and support

    Visit Your Fertility (Opens in new tab) to learn more about how to improve your chance of having a baby.

    Read the full definition of infertility (Opens in new tab).

    Visit YourIVFSuccess to search for accredited IVF practitioners (Opens in new tab) near you. There is also information to help you understand the services they offer and view success rates.

    FIND A HEALTH SERVICE — The Service Finder can help you find doctors, pharmacies, hospitals and other health services.

    Speak to a maternal child health nurse

    Call Pregnancy, Birth and Baby to speak to a maternal child health nurse on 1800 882 436 (Opens in new tab) or video call. Available 7am to midnight (AET), 7 days a week.

    • Australian Government, Department of Health Disability and Ageing — Medicare and benefits for Assisted Reproductive Technology - definition of infertility (Opens in new tab)
    • Fertility Society of Australia and New Zealand — Male Infertility (Opens in new tab)
    • Fertility Society of Australia and New Zealand — Female Infertility (Opens in new tab)
    • Fertility Society of Australia and New Zealand — Effects of caffeine, alcohol and smoking on reproductive outcomes (Opens in new tab)
    • Centre of Perinatal Excellence — Managing infertility, IVF and your relationship (Opens in new tab)
    • The Royal Women's Hospital — Fertility treatments (Opens in new tab)
    • Healthy Male — Male infertility (Opens in new tab)

    Find out how we develop and review our content.


    Last reviewed: December 2025

    Need more information?

    These trusted information partners have more on this topic.

    Infertility | Family Planning NSW

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    Learn more on Family Planning Australia website

    Infertility in men | Better Health Channel

    A couple isn't suspected of fertility problems until they have tried and failed to conceive for one year.
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    Learn more on Better Health Channel website

    Conception and fertility difficulties

    For many people, the journey of planning a family is filled with the anticipation of conception, the excitement of pregnancy, and the joy of birth. However, this is not the case for everyone, including those who face challenges trying to conceive. In fact, 1 in 6 Australian families have difficulties conceiving, and approximately 1 in 25 babies are born following assisted reproduction.
    Gidget Foundation Australia logo
    Learn more on Gidget Foundation Australia website

    Fertility awareness based methods of contraception, lactational amenorrhoea and withdrawal | Family Planning NSW

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    Learn more on Family Planning Australia website

    How Health Conditions Affects Your Fertility | Your Fertility

    Learn more about how your health and medical conditions could impact your fertility. Visit the health and medical section of the Your Fertility website for more information.
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    Learn more on Your Fertility website

    Maximising Natural Fertility | Family Planning NSW

    Family Planning Australia logo
    Learn more on Family Planning Australia website

    Gender diversity and fertility | Your Fertility

    We offer the facts about fertility for men, women, trans and gender diverse people. Find out what you can do now to improve your chances of having children. Visit our website today!
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    Learn more on Your Fertility website

    General Resources | Your Fertility

    Get the information you need with Your Fertility. Our general fertility resources can help couples prepare for a healthy and prosperous pregnancy journey. Visit us online today for more details!
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    Learn more on Your Fertility website

    Test your fertility knowledge | Your Fertility

    Get the knowledge you need to make the best decisions about your Fertility with our comprehensive test. Check out our website to find reliable information.
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    Learn more on Your Fertility website

    Male infertility: How to talk about male infertility with your partner

    Infertility can be tough on relationships. Here’s your guide to talking about male infertility with your partner.
    Healthy Male logo
    Learn more on Healthy Male website

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