Veterinarians major in veterinary medicine or veterinary science, a four-year professional degree that combines biology, chemistry, animal anatomy, and clinical practice

The degree is called a Doctor of Veterinary Medicine (DVM) or Doctor of Veterinary Science (DVS), depending on the school. It is not a traditional undergraduate major — you cannot study "veterinary medicine" as a bachelor's degree. Instead, you complete prerequisite courses in your first two years of college (usually biology, chemistry, organic chemistry, physics, and biochemistry), then explore to veterinary school. Once accepted, you spend four years in the professional program learning how to diagnose and treat animal diseases, perform surgery, and manage a veterinary practice.

The curriculum is rigorous and standardized across accredited schools in the United States. Every veterinary school covers the same core subjects because the profession is regulated — vets must pass licensing exams that test knowledge in specific areas. The balance between classroom learning and hands-on work shifts as you progress through the four years, with the first year heavily focused on anatomy and physiology, and the final year mostly clinical rotations where you work with real animals under supervision.

Key Takeaways

  • Veterinary medicine is a four-year professional degree (DVM or DVS) that comes after completing prerequisite science courses, not an undergraduate major.
  • The first two years focus on animal anatomy, physiology, pharmacology, and pathology — the science of how animal bodies work and what goes wrong.
  • The second half of veterinary school emphasizes clinical skills: surgery, dentistry, internal medicine, and working with different animal species.
  • All accredited veterinary schools teach the same core material because graduates must pass the North American Veterinary Licensing Examination (NAVLE) to practice.
  • Many schools offer specialization tracks or electives in areas like exotic animals, equine medicine, or food animal practice during the final year.

The Prerequisites You Need Before Veterinary School

Before you can explore to veterinary school, you must complete specific science courses as an undergraduate. These are not part of a veterinary major — they are prerequisites that any bachelor's degree program will let you take. The standard list includes general biology (with lab), general chemistry (with lab), organic chemistry (with lab), biochemistry, physics, and mathematics through calculus. Some schools also require microbiology, genetics, or animal science courses.

You can major in anything as an undergraduate — biology, chemistry, animal science, or even English — as long as you complete these prerequisites alongside it. Many students major in biology or animal science because those programs naturally include most of the required courses. Others double-major or take prerequisites while majoring in something completely different. Veterinary schools care that you have completed the coursework, not what your undergraduate degree says.

Your GPA in these prerequisite courses matters more than your overall GPA. Veterinary schools calculate a "science GPA" separately and expect it to be competitive — typically 3.5 or higher, though this varies by school. You will also need to take the Graduate Record Examination (GRE) or the Veterinary Medical College process Service (VMCAS) exam, depending on which schools you explore to.

First Year: Anatomy, Physiology, and Foundational Science

Your first year of veterinary school is almost entirely classroom and laboratory work. You study gross anatomy — the structure of animal bodies — using dissection and models. You learn comparative anatomy, which means understanding how a dog's skeleton differs from a horse's or a bird's. This is not just memorization; you need to understand why those differences matter for how the animal moves, eats, and survives.

Alongside anatomy, you take physiology (how organs and systems function), pharmacology (how drugs work and what doses are safe), and pathology (what happens in the body when disease occurs). You also study biochemistry specific to animals — how their metabolism works, how they process nutrients, and how their immune systems respond to infection. Most of these courses include lab work where you examine tissue samples, run diagnostic tests, or practice procedures on models.

The first year also includes introductory clinical courses where you learn basic physical examination skills, how to handle different animals safely, and how to take a medical history from an owner. You might practice on live animals in a controlled setting, but you are not yet treating patients independently.

Second Year: Disease, Diagnosis, and Specialized Systems

In your second year, you explore what you learned in year one to actual diseases. You take courses in internal medicine, surgery, dentistry, and reproduction. You study how to diagnose problems using blood tests, X-rays, ultrasound, and physical examination. Microbiology and parasitology teach you about the infections and parasites that affect different animals.

You also begin to specialize by animal type. Most schools require you to study small animal medicine (dogs and cats), large animal medicine (horses, cattle, sheep), and exotic animal medicine (birds, reptiles, small mammals). Some schools weight these differently depending on their focus — a school in a rural area might emphasize equine and food animal medicine more heavily.

By the end of second year, you take the NAVLE Part 1 exam, which tests your foundational knowledge. Passing this exam is required before you can move into clinical rotations. The exam covers anatomy, physiology, pathology, pharmacology, and the basics of diagnosing and treating disease across all animal species.

Third and Fourth Years: Clinical Rotations and Hands-On Practice

The final two years are mostly clinical work. You rotate through different departments — small animal medicine, surgery, dentistry, emergency medicine, and others — spending weeks or months in each. During a rotation, you work alongside licensed veterinarians and senior students, examining animals, running diagnostics, assisting in surgery, and gradually taking on more responsibility as you prove you can do the work safely.

In a small animal surgery rotation, you might start by assisting on spay and neuter procedures, then move to more complex surgeries like orthopedic repairs or tumor removal. In an internal medicine rotation, you see animals with chronic diseases like diabetes or kidney failure and learn how to manage their care over time. In an emergency rotation, you handle acute trauma, toxicities, and life-threatening conditions.

Many schools allow you to choose elective rotations in your final year, which is where specialization happens. If you are interested in equine medicine, you might do extra rotations at an equine hospital. If you want to work with exotic animals, you can rotate through a zoo or exotic animal clinic. These electives help you decide what kind of practice you want after graduation.

Specialization and Advanced Training After the DVM

The DVM degree qualifies you to practice general veterinary medicine, but many vets pursue additional training to specialize. After graduation, you can enter a residency program in a specific area — surgery, cardiology, oncology, dermatology, or dozens of other specialties. Residencies typically last two to four years and combine clinical work with research and teaching.

To enter a residency, you must have completed your DVM and passed the NAVLE Part 2 exam (the clinical portion). Some residencies are competitive and require strong performance during your clinical rotations, publications, or research experience. Others are less competitive and focus more on your interest in the field.

Board certification is optional but common in specialized fields. After completing a residency, you can take a board exam in your specialty (offered by organizations like the American College of Veterinary Surgeons or the American College of Veterinary Dermatologists). Board certification signals to employers and clients that you have advanced informed.

Differences Between Veterinary Schools and Programs

All accredited veterinary schools in the United States teach the same core curriculum because they must prepare graduates to pass the same licensing exam. However, schools differ in their emphasis and structure. Some schools are research-focused and expect students to participate in research projects; others are more clinically focused. Some schools have strong equine or food animal programs because they are located in rural areas; others emphasize exotic or zoo medicine.

The length of the program is always four years for the DVM, but some schools offer a five-year track that includes a master's degree or extra research time. A few schools offer a three-year accelerated DVM for students who already have a bachelor's degree in a related field, though these are rare.

International veterinary schools operate differently and may not be recognized in the United States without additional examination or training. If you graduate from a veterinary school outside the U.S., you typically must pass the NAVLE and sometimes additional exams to practice in the United States.

Frequently Asked Questions

Can I major in veterinary medicine as an undergraduate?

No. Veterinary medicine is only offered as a four-year professional degree after you complete a bachelor's degree. You can major in biology, animal science, or any other field as long as you complete the required prerequisite science courses. Many students major in biology or animal science because those programs include most of the prerequisites naturally.

What if I don't have all the prerequisites before explore to vet school?

You must complete all prerequisites before you enroll in veterinary school, but you do not need to finish them before you explore. Many schools allow you to explore while you are still taking final prerequisite courses, as long as you complete them before the program starts. Check each school's requirements — they vary.

Do all veterinary schools teach the same subjects?

Yes, all accredited schools teach the same core subjects because graduates must pass the same licensing exam (NAVLE). However, schools differ in how much time they spend on different animal types and specialties. A school in a rural area might emphasize large animal medicine more than a school in a city.

How much of vet school is hands-on versus classroom?

The first year is mostly classroom and lab work. By the second year, you start clinical work. The third and fourth years are primarily clinical rotations where you work with real animals under supervision. Most schools aim for a 50-50 split between classroom and clinical work by the end of the program, though this varies.

What happens if I fail the NAVLE?

You can retake the exam. Most states allow you to retake it multiple times, though some limit the number of attempts or require waiting periods between attempts. Failing the exam does not prevent you from practicing — you just cannot be licensed until you pass. Many states allow you to work under a licensed veterinarian's supervision while you prepare to retake it.