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Our blog / Updates
11 May 2025

Dr. Phunsak Suchonwanit Fertility Specialist

11 May 2025
Updates

Biography of Dr. Phunsak Suchonwanit

Dr. Phunsak “Ton” Suchonwanit is our fertility specialist at Beyond IVF, with more than 20 years of experience supporting couples in their journey to becoming parents, with the following credentials to guarantee his expertise:

  • Doctor of Medicine (MD) from the Faculty of Medical Sciences, Ramathibodi Hospital, Mahidol University, Bangkok, 1993
  • Diploma of the Thai Board of Obstetrics and Gynecology, Faculty of Medical Sciences, Ramathibodi Hospital
  • Reproductive Technology
  • Specialist, The Royal Thai College of Obstetricians and Gynaecologists
  • Work training in assisted reproductive technologies (ART) at Boston IVF in Maryland, USA

Work History / Academic Achievements of Dr. Ton, Dr. Poonsak Suchanawanit

1999 – 2000 – Thapatharin Hospital, Bangkok

1996 – 1999 – Department of Obstetrics and Gynecology, Faculty of Medicine, Ramathibodi Hospital

2001 – 2005 – Infertility Center (Blastocyst Center), Rama 9 Hospital, Bangkok

2001 – 2006 – Family Health Medical Clinic, 23rd Floor, Wongwanich Building, Huai Khwang, Bangkok

2001 – Present – Member of the Thai Society of Reproductive Medicine

2001 – Participant at the founding meeting of ASPIRE (the Asia-Pacific Initiative on Reproduction) in Taipei, Taiwan

2001 – 2013 – Participant at ASPIRE meetings in Taipei, Taiwan, Beijing, China, Singapore, and Bangkok

2003 – Observational training in ART at Boston IVF, Maryland, USA

2006 – 2010 – Infertility Center (Perfect Woman), Piyavej Hospital, Bangkok

2010 – Academic Committee Member for the ASPIRE Congress held in Pattaya, Thailand

2010 – Present – Deputy Head of Family Health Medical Clinic, Perfect Woman Institute, RCA Entrance, Bangkok

2011 – 2018 – Women's Health Center, Samitivej Sukhumvit Hospital, Bangkok

Currently – Beyond IVF

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The Biological Clock

This tool indicates:

  • Natural conception per month if you have no fertility issues
  • IVF success rate at the same age
  • When to seek help after months of unsuccessful attempts

If you are concerned at any stage – we recommend booking a doctor appointment or a free nurse consultation. The sooner you make a plan the better your chances in the long term.

When to seek advice early
  • If you have polycystic ovaries, endometriosis, or have been through a cancer diagnosis; we recommend you get in touch quickly so we can talk you through all your options and give you the greatest possible chance of success.
  • If you’re a single woman considering motherhood in the future; it’s best to approach us early and consider egg freezing as this can be an option for you while you have a higher ovarian reserve and healthier eggs.
Set your age and the months you’ve been trying to conceive
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Your chance of having a baby per month for fertile couples
Your chance of having a baby per IVF cycle (if experiencing infertility)

Body Mass Index calculator

Being overweight or underweight can reduce fertility, so it is important to keep your body weight within the normal healthy range.

Body Mass Index (BMI) is an indication of your body weight and can be calculated by dividing weight by height. You should aim for a BMI of between 20 and 25, as this will optimise your chances of conception.

Woman’s BMI below 19

Even in these modern times, nature knows best. If a woman's BMI falls below 19, the body senses famine and ovulation is switched off to prevent the risk of having a baby with malnutrition. Excessive exercise can reduce body fat and increase muscle mass to a point where periods cease for the same reason. Risk of miscarriage is also increased in women with a low BMI.

Being underweight

If a woman's BMI falls below 19, the body senses famine and ovulation is switched off to prevent the risk of having a baby with malnutrition. Excessive exercise can reduce body fat and increase muscle mass to a point where periods cease for the same reason. Risk of miscarriage is also increased in women with a low BMI.

BMI’s greater than 30

This can reduce fertility by 50%. Pregnancy for women with a 30+ BMI is often associated with problems such as maternal diabetes, high blood pressure, big babies and increased risk of caesarean section.

Add your height and weight to calculate your BMI
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