
Senior Consultant Obstetrician & Gynaecologist
Medical Director & Clinical Governance Officer (CGO) of Monash IVF Singapore
Medical Director of Health & Fertility Centre for Women
Infertility is generally defined as the inability to conceive after 1 year of actively trying i.e. having sexual intercourse 2-3 times a week.
After 1 year of trying, 80-90% of couples would have been successful in conceiving. It is therefore advisable to seek help at this point.
Fertility does decline with age. Studies have found that the probability of conception over a month falls from 25% in women in their early twenties to 8% in their late thirties. Similarly, the probability of conception within a year falls from 97% in women in their early twenties to 65% in their late thirties.
It is therefore important to start planning for a pregnancy as early as possible and to seek help as soon as there seems to be difficulty. It would also be advisable to seek help early if you are over 30 years, or if there are any indicators of infertility factors such as irregular or painful menstruation.

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Infertility may be due to male or female factors.
Often, there is a mixture of both male and female factors. In some cases, there appears to be no obvious reason and this is termed ‘unexplained infertility’.
Our fertility clinic offers basic investigations of infertility which include a semen analysis and, for the female partner, hormone tests and an ultrasound scan of the pelvis. Depending on the medical history and basic investigation results, advise will be given by our fertility specialist on the method of testing for patency of the fallopian tubes.
Some women may be recommended a hysteroscopy to assess the cavity of the womb. This test involves visualising the cavity of the womb with a fine telescope to ensure that the cavity of the womb is healthy. Any polyps found will be removed. These are all considered preparation for infertility treatments, such as In-Vitro Fertilisation (IVF) and Intrauterine Insemination (IUI).

Medical Director
BMBCh (Oxford), FRCOG (UK), FAMS (Singapore)
Dr Kelly Loi is the Medical Director of Health & Fertility Centre for Women and Monash IVF Singapore. She is known for her work in fertility and women’s health, with a focus on providing personalised and evidence-based care for women at different stages of their reproductive journey.
Dr Loi's clinical interests include fertility, gynaecology, obstetrics, as well as minimally invasive laparoscopic and hysteroscopic surgery. She supports women through a wide range of reproductive and gynaecological concerns, including fertility challenges, IVF treatment, pregnancy care and complex women’s health conditions.
She has also completed clinical attachments at internationally recognised institutions including Johns Hopkins Hospital and Massachusetts General Hospital, Harvard Medical School, further deepening her experience in fertility care and reproductive medicine.
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