A surgical internship lasts one year, running from July 1 to June 30. This is your PGY-1 (postgraduate year one) period, and it’s the first of at least five years of general surgery residency training. During this year, you must complete at least 48 weeks of full-time clinical activity.
The Intern Year in Context
The intern year is the entry point into a five-year (60-month) general surgery residency. The American Board of Surgery groups PGY-1 through PGY-3 as the “junior years,” during which you rotate through a mix of surgical and non-surgical services. During these junior years, no more than six months can be spent on non-clinical or non-surgical disciplines, and no more than twelve months on non-general surgery surgical specialties. So while your intern year includes some variety, it stays heavily anchored in surgery.
After completing the intern year, you advance to PGY-2 and continue through PGY-5 before becoming board-eligible. The full path from medical school graduation to independent surgical practice is a minimum of five years, with many surgeons adding fellowship training on top of that.
Categorical vs. Preliminary Internships
Not every surgical intern is on the same track. The distinction between categorical and preliminary positions changes what happens after your intern year ends.
A categorical position guarantees you a spot through the entire residency. You match into a program, start as an intern, and progress through all five years at that institution without needing to reapply. This is the standard path for someone planning to become a general surgeon.
A preliminary position, by contrast, offers only one to two years of training. It’s designed for residents who need surgical experience before entering an advanced specialty program, such as anesthesiology, radiology, or one of the surgical subspecialties. If you matched into a preliminary surgical internship, your time as a surgical intern is still one year, but you’ll leave that program afterward to start your advanced training elsewhere. Some preliminary interns also use the year to strengthen their application for a categorical spot in a future match cycle.
Integrated Subspecialty Programs
If you’re entering an integrated surgical subspecialty like vascular surgery, plastic surgery, or cardiothoracic surgery, the intern year still lasts 12 months, but the overall residency structure looks different. UCSF’s integrated vascular surgery program, for example, is a five-year track that includes 24 months of core surgical rotations and 36 months focused on vascular surgery. You enter directly from medical school, so the intern year is baked into the program rather than treated as a separate stepping stone. The daily experience during PGY-1 is similar across tracks: long hours, supervised patient care, and foundational surgical skills.
What the Intern Year Looks Like Day to Day
Surgical interns work under strict supervision. ACGME rules require that PGY-1 residents receive direct supervision initially, meaning a more senior resident or attending is physically present during patient care activities. You won’t be operating independently.
Work hours are capped at 80 hours per week, averaged over a four-week period. Individual shifts can last up to 24 hours of continuous scheduled clinical work, with up to four additional hours allowed for patient handoffs and education. PGY-1 residents are not permitted to moonlight, so outside clinical work for extra pay is off the table during intern year.
Programs are also expected to monitor workload compression at the PGY-1 level specifically, since interns are most vulnerable to being overwhelmed by patient care responsibilities they haven’t yet developed the efficiency to manage.
The In-Training Exam
Every January or February, surgical interns sit for the ABSITE, the American Board of Surgery In-Training Examination. This is a formative test, meaning it doesn’t determine whether you pass or fail the year. Program directors use your score as one factor among many to gauge how you’re progressing. A poor score won’t end your career, but a pattern of low scores across multiple years can raise concerns. The exam covers basic science and clinical knowledge relevant to surgery, and your performance gives both you and your program a benchmark for where your knowledge stands relative to peers nationally.
Intern Pay
Surgical interns earn roughly $60,000 to $65,000 per year, though the exact figure varies by institution and region. When you factor in the 70 to 80 hours most interns actually work each week, the effective hourly rate falls well below what most people expect for a physician. Pay increases modestly with each subsequent year of residency, typically by a few thousand dollars annually. Cost of living matters significantly here: $65,000 in a mid-sized Midwestern city stretches much further than the same salary in San Francisco or New York.