Very broadly, about half of infertility is male-based and about half female-based.
The good news is that today, many people who experience infertility do manage to have a baby. It may just take a little longer than average, or they many need some advice and assistance to get there.
Majority of couples do not have a clear infertility diagnosis.
This can be difficult, as often ‘making a plan’ feels like the best thing you can do. However, a diagnosis of unexplained infertility can often have better outcomes, as the couple usually have normal tubes and sperms and ovulation is occurring.
Unexplained infertility can sometimes be linked to age. You can examine the possibilities with your age/chance using our biological clock in our Helpful Tools.
Should you be concerned, do not delay – talking to a fertility doctor is the best thing you can do to help you understand your options.
After the first consultation, your fertility specialist will recommend a treatment option to suit your needs.
Infertility Causes in Women

- Tubal problems
- Endometriosis
- Ovulation disorders
- Polycystic ovaries
- Recurrent miscarriage
- Hormonal problems
- Autoimmune (antibody) disorders
Infertility Causes in Men

The cause of most male infertility remains unknown. Known causes can include the following:
- Failed vasectomy removal
- Retrograde ejaculation
- Blocked ducts
- Absence of vans deferens
- Undescended testes in childhood
- Autoimmune (antibody) disorders