Dr. Maude Lefebvre completed her doctorate in medicine at the Université de Montréal in 2007 and completed her training as a geneticist at Ste-Justine Hospital, Université de Montréal, in 2012. She was certified by the Royal College of Physicians and Surgeons of Canada (Medical Genetics) in 2012.

Following these five years of specialization, Dr. Lefebvre pursued a one-year over-specialization in infertility, prenatal diagnosis and hereditary cancer genetics at McGill University (Royal Victoria Hospital, Montreal General Hospital and Jewish General Hospital) as well as at Mount Sinai Hospital, University of Toronto. She has worked primarily with Dr. William Foulkes and Dr. David Chitayat, leaders in their respective fields.

 
She has been practicing since 2013 in the gene medicine department of the Centre Hospitalier de l'Université de Montréal (CHUM) as well as at the clinique ovo.

 
In addition to the various genetic diseases, Dr. Lefebvre's interest is clinical ethics and teaching. In addition to her activities as a clinician, Dr. Lefebvre also completed university training in clinical ethics at the Faculty of Higher Studies of the Université de Montréal. She is vice-president of the CHUM's Clinical Ethics Committee and is involved in many committees related to education, at the local, provincial or national level.

 
In her spare time, she also enjoys photographing children as an amateur.