I Thought I Knew is a poignant, blow-by-blow account of a leading urologist whose world collapsed when he discovered he himself faced the very condition he was expert in – prostate cancer. Lying on a cold operating table one Saturday morning in December 2017, Prof Christopher Cheng realised he had entered the dusk of unknowns. Not even his 37 years of professional life in the field could prepare him for the momentous episode – a professor turned patient.

1. Prostate ? Cancer ? Treatment ? Singapore. 2. Prostate ? Cancer ? Patients ? Singapore ? Biography. 3. Urologist ? Singapore ? Biography.