The treatment practices for endometrial cancer have significantly changed over the last two decades. Nowadays, in addition to standard pathology, additional tests are performed to understand  the behaviour of tumour so that personalized treatment can be advised for every patient. This approach ensures that patients with good cancer cell features receive minimum  essential radiotherapy or surgery treatment with fewer side effects, while those with poor cell features undergo more aggressive treatment to improve their chances of survival. However, this approach is not widely adopted in Asian countries. To address this, we are launching a project to gather data from various hospitals across Asia. The project aims to understand how different cancer cell factors impact treatment decisions and identify better ways to select additional treatment plans based on a patient’s cancer cell features. The project will gather data from around 300 patients who were evaluated or treated between January 2021 and December 2023. It will run for two years to improve our understanding and gain insights into the best ways to treat endometrial cancer.