Everything you've heard is true. Residency training will be the most challenging part of your medical career.
For US medical graduates, residency represents an abrupt shift from being a medical student one day to a practicing physician the next. For International Medical Graduates, many of whom have already completed training in their home country, residency presents the challenge of both "repeating" their training while simultaneously having to adapt to the specific procedures of US teaching hospitals.
Four Challenges Ahead You face four important challenges before undertaking residency training: