OnlyMyHealth interacted with Dr Vijay Patil, Consultant - Medical Oncology, P. D. Hinduja Hospital & MRC, Mahim, Mumbai. Liquid biopsy is the scientific name for analysis of circulating cell free DNA, circulating tumour cells or exosomes in body fluids like blood, urine, sweat, etc. It is also patient friendly as it is non-invasive and hence can be repeated multiple times.