Resident doctors are licensed physicians who have graduated from medical school and are completing hands-on specialty training in a hospital or clinic. They hold an M.D. or D.O. degree, they can diagnose and treat patients, but they work under the supervision of more experienced physicians called attendings. Residency is the bridge between medical school and fully independent practice.
What It Takes to Become a Resident
Before residency begins, a doctor has already completed at least two years of undergraduate education (typically four), followed by four years of medical school. Medical school graduates earn either an M.D. (Doctor of Medicine) from schools accredited by the Liaison Committee on Medical Education or a D.O. (Doctor of Osteopathic Medicine) from schools accredited by the American Osteopathic Association. Both degrees qualify a graduate for residency training.
Getting into a specific residency program isn’t a simple application. It runs through the National Resident Matching Program, commonly called “the Match.” Medical students rank their preferred programs in order, and program directors independently rank the applicants they interviewed. A computer algorithm then pairs students and programs based on both sides’ preferences. The system is designed to be optimal for the student, meaning each applicant is guaranteed the best available program from their own ranked list. Once matched, the commitment is binding for both sides.
Where Residents Fit in the Hospital Hierarchy
Hospitals have a clear pecking order among physicians, and understanding it helps make sense of who’s who when you’re a patient.
- Interns (PGY-1): First-year residents, fresh out of medical school. They are doctors, but they practice only with guidance and supervision. In many hospitals, interns wear short white coats to signal their training level.
- Residents (PGY-2 and beyond): After completing intern year, doctors move into the remaining years of residency. They take on more clinical decision-making, supervise interns, and gradually build independence. The majority of doctors at this stage are pursuing specialty training rather than entering general practice.
- Attending physicians: Fully trained doctors who have completed residency and bear primary responsibility for patient care. They oversee the residents and often play an active role in teaching.
As residents progress from their first year to their final year, their role shifts noticeably. Early on, the focus is on collecting patient information and conveying facts to the team. By the senior years, residents are expected to handle more clinical reasoning, make independent decisions, and discuss the evidence behind treatment choices.
What Residents Actually Do All Day
A resident’s day revolves around patient care, but a surprising amount of it happens away from the bedside. Direct patient care includes examining patients, taking histories, and participating in team rounds where the group walks from room to room discussing each case. Residents present their patients during these rounds, summarizing what’s going on and proposing next steps.
Indirect patient care takes up a large chunk of the day too. This means discussing cases with consulting specialists, calling family members with updates, coordinating with nurses and pharmacists, and handling the logistics of admissions and discharges. A significant portion of time also goes to the computer: writing clinical notes, entering medication orders, reviewing lab results, and looking up imaging and diagnostic tests. The work is a mix of thinking, communicating, documenting, and hands-on medicine.
How Long Residency Lasts
Residency length depends entirely on the specialty. Family medicine and pediatrics each require three years of training after medical school. General surgery takes five years. Some subspecialties require additional fellowship training on top of residency, which can add one to three more years. A surgeon who subspecializes might be in training for seven or more years after earning their medical degree.
This means a resident could be anywhere from 26 to their mid-30s, depending on how long their training pathway runs. It’s not unusual for residents to be well into adulthood, managing families and financial obligations, while still technically “in training.”
Work Hours and Pay
Residency is famously demanding. The Accreditation Council for Graduate Medical Education caps residents at an 80-hour work week, averaged over four weeks. Shifts can last up to 24 hours, with a possible 6-hour extension for patient continuity and education. Residents must get at least one full 24-hour period off per week, can be on overnight call no more than every third night, and are required to have a minimum 10-hour rest period between shifts. Even if a resident slept through the night while on call in the hospital, they still must go home for at least 10 hours before returning.
Despite those long hours, residents earn far less than fully trained physicians. The national average stipend for a first-year resident in 2025 is $68,166, according to the Association of American Medical Colleges. Pay increases modestly with each training year, but growth has trailed inflation. For context, most residents are carrying six-figure medical school debt while earning a salary that, divided by hours worked, can fall below what many non-physician professionals make.
What Happens After Residency
Completing residency opens two important doors: state medical licensure and board certification. Licensure is the legal requirement to practice medicine independently. To get it, a physician must pass a national licensing exam (either the USMLE for M.D. graduates or COMLEX-USA for D.O. graduates) and document their training. Most states allow U.S. medical graduates to obtain a license after just one year of graduate medical education, though most physicians complete their full residency before entering independent practice. International medical graduates often face additional requirements, such as two years of U.S.-based training.
Board certification is a separate, voluntary credential. It requires completing an accredited residency, holding a full medical license, and passing a specialty-specific board exam. While not legally required, board certification signals to patients and employers that a physician has met a high standard in their field. Once both milestones are achieved, the resident becomes an attending, free to practice independently, join a group, or pursue further subspecialty training through a fellowship.