Dr Lim is a certified ear, nose and throat surgeon. Her clinical expertise involves the treatment of ear, nose, throat and thyroid conditions in adults and children. She has special interests in advanced surgical techniques, such as advanced endoscopic sinus surgery to remove blockages in the sinuses, the use of balloon sinuplasty and stereotactic computerized navigational surgery.

Dr Lim graduated with Bachelor of Medicine, Bachelor of Surgery from the National University of Singapore (NUS) in 1995 and completed her basic and advanced surgical training in Singapore. She was then admitted as a fellow of the Royal Colleges of Surgeons of Glasgow, UK in otorhinolaryngology (ENT) in 2000.

In 2003, Dr Lim was awarded the Health Manpower Development Plan (HMDP) scholarship from the Ministry of Health to pursue subspecialty training in rhinology (nose medicine) and advanced endoscopic sinus surgery at the Hospital of the University of Pennsylvania. She was also appointed a clinical lecturer at the University of Pennsylvania and was involved in teaching medical students during her tenure. Dr Lim was the first Singaporean ENT surgeon to undergo fellowship training in Rhinology and Advanced Sinus Surgery in United States of America in 2003.

In 2005, she was made a fellow of the Academy of Medicine of Singapore under the Chapter of Otorhinolaryngologists of the College of Surgeons of Singapore. She is also a fellow of the American Academy of Otolaryngology, Head and Neck Surgery since 2002, a member of the American Rhinologic Society since 2005 and a member of Singapore Society of Allergy and Clinical Immunology since 2009.

Upon her return to Singapore in 2004, Dr Lim started an Otorhinolaryngology Service and spearheaded a Rhinology Service taking care of complicated sinus cases in Alexandra Hospital. Her hospital appointments placed her on the Operating Room Committee of Alexandra Hospital and on the Hospital Planning Committee for the new Khoo Teck Puat Hospital.

https://www.surgiten.com/dr-lim-ing-ruen/