Dr Chua graduated MBBS from the National University of Singapore in 1982. She was subsequently awarded membership of the Royal College of Obstetrics and Gynaecology in 1987. She did subspecialty training in high risk pregnancies as a fellow at the University of Oxford in 1990. This was made possible by the award of a NUH Faculty Development Scholarship.
Over the next 8 years, she was a member of the Faculty of Medicine, National University of Singapore. Other than clinical and teaching duties, she had extensive research interests, publishing extensively in peer reviewed journals. Her research work culminated in her receiving the Ph.D. from the Faculty of Medicine, National University of Singapore, in 1999.
Dr Chua has been in private practice since 1998.