Prof. Yip is a consultant breast surgeon in the University Malaya Medical Centre, Kuala Lumpur. She started the Breast Clinic in the University Malaya Medical Centre (UMMC) in 1993 and takes care of over 300 new cases of breast cancer every year.
She is the Chairman of the National Clinical Practice Guidelines for the Management of Breast Cancer in Malaysia, and serves on the Council of the College of Surgeons of Malaysia. She is an exco member of the Asian Breast Cancer Society and is a member of Breast Surgery International. She is also on the Scientific Advisory Committee of the Breast Health Global Initiatives Foundation. Her research interests are in the epidemiology, early detection and management of breast cancer in developing countries. She has over 70 articles in peer-reviewed journals.
She was awarded the first UICC Reach to Recovery International Asia Pacific Health Professional Award in 2004 in recognition of her outstanding commitment and contribution to breast cancer support programmes in the Asia Pacific region and 2009 RRI Medal for Health Professionals for her strong commitment to voluntary breast cancer support programs at the 15th UICC Reach to Recovery International Breast Cancer Support Conference.