Dr Mallika Sekhar is a consultant haematologist and honorary senior lecturer at UCL specialising in myeloproliferative diseases across University College London Hospital and Royal Free Hospital with a special interest in patients with myeloproliferative diseases leading to vascular thrombosis. Her other specialist areas include acute leukaemia and transfusion medicine. She has contributed to national guidelines in these areas through the British Committee for Standards in Haematology and SaBTO and was a member of the clinical expert panel on the Pathology Modernisation initiative for London. She is the lead for undergraduate education in haematology at the Royal Free campus.

She qualified from University of Bombay, Mumbai, India with MBBS and then MD in Medicine and Therapeutics; following this she trained in haematology at Christian Medical College, South India for a year before moving to the UK where she completed her training in haematology and stem cell transplant. Following a year of research in haematopoietic stem cells she was appointed as Consultant Haematologist in 1995, initially at West Middlesex Hospital and moved to the Royal Free Hospital in 2011. Since 2015 she has been working across UCLH and RFH.