
Dr. Kittawee Rattanawattanasin, MD
Obstetrician and Gynecologist


Bangkok, Thailand

General Obstetric and Gynecology Care Comprehensive Women’s Health Services Smile IVF Clinic In addition to fertility and reproductive medicine servic

PESA / TESE Direct Sperm Retrieval from the Testis for ICSI Treatment Smile IVF Clinic Male infertility can sometimes occur when sperm cannot be found

Preparing for pregnancy is an important step for couples and individuals who are planning to have children. Good health in both partners can influence

Counselling investigation and treatment of infertility problem When to Seek Help for Infertility If you and your partner have been planning to have a

Preimplantation Genetic Testing PGT-A, PGT-M and NGS Embryo Genetic Screening Smile IVF Clinic Preimplantation Genetic Testing, or PGT , is an advance

In Vitro Fertilization (IVF) Treatment (ICSI) Assisted Reproductive Technology (ART) Assisted Reproductive Technology (ART) refers to medical treatmen

Advanced Time-Lapse Embryo Culture System Smile IVF Clinic The quality and development of embryos play an important role in the success of infertility

Fresh and Frozen Embryo Transfer Fresh/Frozen Embryo Transfer Smile IVF Clinic Embryo transfer is an important step in fertility treatment, especially

NIPT Non-Invasive Prenatal Testing Smile IVF Clinic NIPT (Non-Invasive Prenatal Testing) is a prenatal screening test used during pregnancy to assess

Intrauterine Insemination, commonly known as IUI , is a fertility treatment that involves preparing and selecting healthy sperm before placing them di

Obstetrician and Gynecologist


Smile IVF Clinic is a specialized fertility clinic in Bangkok, Thailand, providing comprehensive consultation, diagnosis, and treatment services for individuals and couples experiencing infertility. Guided by the slogan “Your smile and success are our happiness in our work,” the clinic is committed to helping patients move closer to their dream of having children through attentive care, modern reproductive technology, and a patient-centered approach.
Founded by Dr. Kittawee Rattanawattanasin, MD, an obstetrician and gynecologist subspecializing in reproductive medicine, together with a team of experienced scientists and fertility specialists, Smile IVF Clinic officially opened on July 17, 2018. The clinic was established with the mission to provide high-quality fertility care with warmth, understanding, and clear communication throughout every step of treatment.
Smile IVF Clinic provides a wide range of fertility services, including infertility diagnosis, intrauterine insemination (IUI), in vitro fertilization (IVF), intracytoplasmic sperm injection (ICSI), sperm retrieval procedures such as PESA/TESE, embryo transfer, egg freezing, embryo freezing, assisted hatching, and preimplantation genetic testing (PGT-A, PGT-SR, and PGT-M) using advanced technologies such as NGS and Sanger sequencing. The clinic also offers genetic carrier screening for selected inherited conditions.
The clinic has been assessed and certified as a qualified provider of assisted reproductive technology services by Thailand’s Department of Health Support and The Royal Thai College of Obstetricians and Gynaecologists. Smile IVF Clinic is also accredited by the Reproductive Technology Accreditation Committee (RTAC) of the Fertility Society of Australia and New Zealand, reflecting its commitment to internationally recognized standards in fertility care and laboratory practice.
One of Smile IVF Clinic’s key strengths is its advanced embryo laboratory and clean room environment. The embryo laboratory has been designed to support optimal conditions for embryo culture, with environmental control systems, HEPA air filtration, positive air pressure, non-UV lighting, and a high-standard clean room environment. The clinic has also received ISO 9001:2015 quality management certification, reinforcing its focus on safety, consistency, and quality in every stage of service.
Smile IVF Clinic is equipped with advanced reproductive technology, including the EmbryoScope Plus, a time-lapse embryo incubation system that allows embryologists to continuously monitor embryo development without unnecessary disturbance. This technology supports more precise embryo assessment and helps improve the overall quality of fertility treatment planning.
Beyond medical technology, Smile IVF Clinic places strong emphasis on personalized care. The clinic’s experienced care team provides assistance and consultation in multiple languages, including Thai, English, Chinese, and Lao, supporting both local and international patients throughout their fertility journey. Each patient receives thoughtful guidance, clear explanations of possible causes of infertility, and detailed information about treatment options to help them make informed decisions with confidence.
With experienced doctors, skilled embryologists, modern laboratory facilities, and compassionate patient support, Smile IVF Clinic strives to deliver fertility care that combines medical expertise with warmth and understanding helping patients and families take meaningful steps toward the possibility of parenthood.
Choose your preferred way to reach us
428 Ari Hills Building 21th Floor,, Phahonyothin Rd., Samsen Nai, Phaya Thai,, Bangkok, Thailand