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Internship vs Externship: How Internships, Externships, Shadowing and Volunteering Differ
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Internship vs Externship: How Internships, Externships, Shadowing and Volunteering Differ

Written by
International Medical Aid
on March 3rd, 2025

Reviewed by
Dr. Shazim Bagha, MD
on October 15, 2026

READING TIME
18 minutes

Internship vs externship comes down to length, formality and role. An internship usually lasts from a month to a year and builds responsibility over time, while an externship is a short experience, often one day to two weeks, spent following a professional. Shadowing and volunteering are different again, so define each by what you actually do.

The workforce is competitive, and college students need to make the most of their time in school to stand out. That starts with building skills employers and admissions committees value: teamwork, verbal communication, analytical and problem-solving skills and a strong work ethic. Reviewers also look at extracurricular activities and applied learning, so at the undergraduate level you should look for ways to gain real experience. To see how these options fit a pre-med plan, read our guide to what internships a pre-med student should do.

Internship, Externship, Shadowing and Volunteering at a Glance

Labels vary between organizations, so judge each opportunity by what you will do and who supervises you.

ExperienceTypical lengthWhat you doWho supervisesFormality
InternshipA month to a yearWork within an organization, often on projects; responsibility grows over timeA manager or assigned supervisorFormal application, often a defined schedule
ExternshipA day to two weeks, longer in some fields such as nursingFollow a professional through their day and learn parts of the jobThe professional you shadow, often through a school partnershipLess formal; often arranged through networking or your school
ShadowingA few hours to several daysWatch a clinician work and learn how decisions are madeThe clinician you followInformal or arranged through a hospital office
VolunteeringOngoing, a few hours a weekHelp an organization without pay, often in support rolesThe organization’s volunteer coordinator or staffVaries; usually an application and orientation
Supervised clinical internship abroadTwo weeks or moreRotate through hospital departments, follow cases and take part in supervised tasks within your training levelLicensed physicians and nurses, plus a program mentorApplication, interview and structured schedule

The Difference Between an Internship and an Externship

An internship is a position held within an organization. It lets the intern gain work experience or fulfill a credit requirement, and the intern is usually an undergraduate or other student. An externship often starts as a partnership between an educational institution and an employer. The student gets the chance to see the day-to-day work of a professional in their field of interest.

Both experiences help you build a network of professionals in the industry and decide whether you are choosing the right career path. Length, formality, compensation and duties are the main factors that distinguish an internship from an externship.

How Long Each Position Lasts

Duration is one of the clearest differences. An internship can last from a month to a year. An externship is a short learning experience, often from a day to two weeks, and it is usually less formal than an internship.

You will rarely find externships on job boards or mailing lists. Some schools offer them as part of their academic programs. Otherwise, getting one is usually a matter of networking through:

  • Family friends
  • Your parents’ colleagues
  • Leaders in your local community
  • Faculty and alumni from your school

How Do Nurse Externships Differ?

Nurse externships are the main exception to the short timeframe. They usually run for several weeks over a summer, and the extern works closely with professional nurses. At Nationwide Children’s Hospital, for example, the summer nurse extern program runs for 12 weeks for junior students in an accredited BSN program. Applicants need a 3.0 GPA or above and references from recent clinical instructors, and externs are hired into temporary employment as patient care assistants.

Requirements vary by hospital, but nurse externship applicants are commonly asked to:

  • Meet a minimum GPA requirement
  • Complete required nursing coursework or clinical rotations
  • Complete an application
  • Provide letters of recommendation from clinical faculty

Nurse externs gain confidence and hands-on experience with complex patients and coexisting conditions. They also learn what a full shift in a health facility is like, which prepares them for working as a nurse.

Paid or Voluntary

Internships can be voluntary or paid, can earn course credit and can even be virtual. Take advantage of them for the experience. An internship does not guarantee a job afterward, but employers do use internships to evaluate and train potential hires.

Students usually do not receive payment or school credit for short externships, although longer programs such as some nurse externships are structured as paid temporary employment. Either way, you gain valuable experience. You spend time in the workplace, follow a working professional and learn how to do parts of that person’s job.

Why Companies Offer Internships and Externships

You may wonder why an organization would train someone who will only stay a short time. Employers host interns and externs for many reasons, including:

  • Free and affordable labor
  • Help completing a major project or event
  • Attracting students to their training programs
  • Building relationships with colleges and universities
  • Creating a talent pipeline

Some employers create these learning experiences specifically to hire. Not every employer is looking to fill a long-term position, but hosting interns and externs is useful for organizations that want entry-level talent. They can evaluate students’ abilities without committing to a contract.

Many interns and externs return to the same organization each year until graduation. The employer learns whether the student is a good fit, and working with the same person again saves time and money. Some students are invited back for full-time employment after graduation, and they already understand the job and how the organization works.

Many employers also want relationships with colleges and universities. Recruiting interns and externs lets them reach out to these schools. Some employers contact faculty members directly, and faculty can help recruit students with specific skills. Others post openings on a university’s career center website or attend career fairs to raise their profile on campus.

Organizations often have special projects that regular staff do not have time for. Interns and externs can focus on those projects while employees handle their usual duties. Over time, these programs create a pool of talent the organization can draw on for entry-level positions, which makes hiring easier because the recruits need less retraining.

What Students Get From the Experience

Gaining experience in your field of study pays off. Interns and externs can gain:

  • Knowledge in a specific field
  • An understanding of how organizations work
  • Insight into the challenges that come up every day
  • A network of contacts
  • Valuable work experience
  • University credits, in some programs
  • The national minimum wage or more, for paid work
  • The chance to apply academic study in a live work environment

These experiences build skills you can use in the real world, such as problem-solving, relationship management and project management. Even a short externship or internship is valuable, because you come away with transferable skills and professional connections. The experience also strengthens your resume.

Typical Job Duties

Duties for interns and externs vary. Consider three factors:

  • The employer
  • The industry
  • The position

An internship differs from traditional employment because it emphasizes training. An externship is a little different again: you may work closely with one professional and learn parts of that person’s job. For example, if you work with a nurse, you may learn how blood is drawn from a patient.

Do not expect too much too soon. Interns and externs often start in support roles, and some employers want you to learn the job from the bottom up. That can include routine tasks such as sorting mail, filing, data entry and scheduling appointments. For some interns and externs, responsibilities grow, and a student can become a valued member of the team and make real contributions.

Student Learning Versus Professional Training

In healthcare, it helps to separate experiences that are designed for student learning from training that leads to a license. Student internships, externships, shadowing and volunteering let you explore careers, build skills and take part in supervised activities appropriate to your level. Professional training, such as the clinical rotations inside a nursing, physician assistant or medical program, is credit-bearing education that leads toward licensure and is supervised under that program’s rules.

ActivityStudent learning experienceProfessional training
PurposeExplore a career and build foundational skillsMeet the requirements of a degree and license
Typical participantsHigh school, college and gap year studentsStudents enrolled in a professional program
ActivitiesFollowing clinicians, supervised tasks within your training level, community and support workGraded clinical rotations with defined competencies
Who decides how hours countEach school or application service you apply toThe professional program itself

Knowing which category an opportunity falls into helps you describe it accurately on applications and choose experiences that match your goals.

Whether You Need Experience

You do not necessarily need prior experience, but employers and programs will look at:

  • Course credits
  • Volunteer work
  • Part-time jobs
  • Student clubs
  • Student portfolios

Some students skip volunteer work because it is unpaid, but volunteering is a chance to build skills and a network. Part-time jobs also teach transferable skills. Most campuses offer many student groups, including sororities, fraternities, business clubs, associations and community groups. Future Business Leaders of America (FBLA) is one popular example; it gives members experience with public speaking and competition against other schools.

Volunteering is a good way to gain experience. Many organizations need volunteers in their facilities, and volunteering shows employers that you take initiative. Look for opportunities in your field of study. Freelancing is another alternative to a part-time job and can include both free and paid work. For example, a computer programming student might write programs for clients. These projects help you build a portfolio and a range of skills.

As a freelancer, you have to market your service, plan the work once you land a client and decide how much to charge. Those are skills you can use in any professional setting.

When to Apply

The right time depends on the type of internship. College students can start applying as early as their freshman year. If you are interested in a particular internship or externship, ask about it about six months in advance so the organization has time to consider candidates and plan for the position.

Internship or Externship: Which Is More Hands-On

It depends on the program. An internship is more formal: you may need to complete an application or get a recommendation, and you may start with routine tasks before working up to more responsibility, such as special projects or major events. An externship is less formal, and an employer may simply invite a student to join for a short time.

An externship can feel more hands-on in a different way, because you follow one professional closely and see what that person does every day. Both experiences have a lot in common. Each is a chance to network, learn new skills and work with professionals in your field.

Some students hold internships throughout college. If you are concerned about your resume, start building experience now. An internship or externship is often the first step.

How to Describe Each Experience on Your Application

Whatever the label on an opportunity, describe it on your application by what you actually did. Admissions readers care about your role, your supervision and what you learned, not the title the organization used.

What Should Each Entry Include?

For every internship, externship, shadowing experience or volunteer role, record the dates, the total hours, the setting, the person who supervised you and a contact who can verify the experience. Then describe your responsibilities in plain, specific language. “Followed an emergency physician through morning rounds and took vital signs for triage patients under nurse supervision” tells a reader far more than “medical intern.”

How Do I Avoid Counting the Same Hours Twice?

Choose one category for each block of time. If a supervised clinical internship included both shadowing and supervised patient care tasks, follow the application service’s definitions and your school’s guidance to decide where the hours belong, and do not list the same hours in two places. Our guide to tracking clinical hours without double counting explains the rules in detail.

Questions to Ask Before You Accept an Offer

Before you commit to any internship, externship or volunteer role, ask:

  • What will my day look like, and who will supervise me?
  • Which tasks will I take part in, and which are outside my role?
  • How are my hours recorded, and who signs them?
  • Is the experience paid, credit-bearing or voluntary?
  • Will I receive a certificate or a letter of recommendation at the end?

Clear answers to these questions tell you whether the opportunity is structured, whether it matches your goals and how you will be able to describe it later.

Expanding Your Horizons Beyond the Classroom

Experience gained while you are still in school connects academic learning to a fulfilling career in healthcare. In a competitive field, students need both a strong academic record and real-world experience that shows their skills, motivation and adaptability. Internships, externships and volunteer roles build clinical awareness, leadership and cultural sensitivity.

Hands-On Learning Through Internships and Externships

Internships and externships let students take part in the daily work of healthcare facilities. Working alongside experienced professionals, students can watch, learn and gradually take on responsibilities appropriate to their level. A formal internship may involve a competitive application, defined projects and a commitment of several months. An externship is shorter and lets you follow professionals without the extended commitment.

This real-world exposure is crucial. It shows how classroom concepts apply in practice, from diagnosing conditions to managing patient care. Students learn to communicate with patients and colleagues, work under pressure and make informed decisions, and they build a network of contacts that can help when they look for full-time work after graduation.

Building Clinical Competence Through Specialized Internships

Different fields offer different learning. Physical therapy internships, for example, are especially good at building clinical competence. Our article 5 Ways Physical Therapy Internships Enhance Clinical Competence explains how they teach practical patient care, sharpen technical skills, deepen understanding of anatomy and physiology and encourage a whole-person approach to rehabilitation. Working with patients helps interns understand movement disorders, pain management and recovery.

Preparing for Mental Health Internships

Mental health work is rewarding and demanding. Mental Health Internships: What to Expect and Prepare For is a useful guide for students considering a career in mental health services. It covers the expectations, challenges and rewards of mental health settings and how to prepare for their emotional and intellectual demands.

Students learn the importance of empathy, confidentiality, professional boundaries and clear communication with people in crisis or living with long-term psychological conditions. These internships build clinical skills, resilience and a deeper understanding of people.

Expanding Your Medical Career Globally

International experience can set you apart. How Overseas Internships Enhance Your Medical Career explores the many benefits of learning outside your home country. Overseas internships let you work in different healthcare settings, where you may see conditions and treatment approaches that differ from those at home.

That exposure builds a global perspective, improves cultural competence and broadens your understanding of global health challenges. Working in a new environment is professionally and personally enriching, and it teaches you to adapt.

What International Medical Aid Programs Offer

International Medical Aid gives students opportunities beyond traditional classroom learning. IMA programs offer medical shadowing abroad in hospitals, clinics and community outreach settings, with licensed physicians and nurses supervising every activity. Interns develop fundamental clinical skills, such as taking vitals, conducting basic patient interviews and following cases, and they document their work with official logs and certificates.

Whether you work in a public hospital or a community clinic, experience with varied patient populations and medical conditions is invaluable. It teaches you to adapt to different health systems, understand the social and economic factors that affect health and think about solutions that fit each community’s needs. Each intern has a dedicated mentor, hours are verified by supervisors and IMA’s U.S. Medical Director, and IMA reports a 100% safety record for all high school and pre-health interns.

Practical Steps to Get Started

If you are eager to begin, start with research and planning:

  • Explore opportunities early: Whether you want an internship, an externship or volunteer work, start researching as early as your freshman year. Early exposure gives you a head start on your resume and builds confidence.
  • Network actively: Join professional groups on and off campus, from sororities and fraternities to professional clubs, to meet people in your field and hear about opportunities.
  • Use reputable resources: Use trusted websites and articles, including the guides above, to understand specialized fields and decide which path fits your goals.
  • Seek mentorship: Reach out to mentors who can share advice and experience. Alumni and professionals in your field can guide your early career steps.

Building Your Future Through Varied Experiences

Internships, externships and volunteer positions build far more than practical skills. They help you develop a professional identity, communicate better and commit to lifelong learning. Every role, however small, is a step toward becoming a more capable and compassionate healthcare professional.

At International Medical Aid, the focus is on developing that potential. IMA gives students the chance to work with experienced healthcare professionals and experience many aspects of medical care.

Your Journey Starts Here

When you are ready to take the next step, explore internships, externships and volunteer opportunities that match your interests, whether in physical therapy, mental health or international medical care.

Start building your experience today with International Medical Aid. Students can gain experience abroad alongside doctors, nurses, nutritionists, counselors, dentists and physician assistants. When you are ready, become an extern or intern today.

Frequently Asked Questions

What Is the Main Difference Between an Internship and an Externship?

An internship is a longer, more formal position, usually a month to a year, in which responsibility grows over time. An externship is a shorter, less formal experience, often a day to two weeks, spent following a professional and learning parts of their job.

Are Externships Paid?

Short externships are usually unpaid and do not earn school credit. Some longer programs, such as hospital nurse externships, are structured as paid temporary employment, so check each program’s terms.

Is Shadowing the Same as an Externship?

They overlap. Both involve following a professional, but shadowing is usually a few hours or days of watching a clinician, while an externship is a more defined arrangement, often organized with a school, in which you learn parts of the job.

Which Is Better for Pre-Med Students, an Internship or Volunteering?

Most strong applicants have both. Ongoing volunteering shows sustained commitment, and a supervised clinical internship adds structured learning and documented hours. Choose based on what your application is missing.

How Long Do Nurse Externships Last?

Usually several weeks over a summer. At Nationwide Children’s Hospital, for example, the summer nurse extern program runs 12 weeks for junior students in an accredited BSN program.

What Do IMA Interns Do?

Under licensed supervision, IMA interns rotate through hospital departments, follow cases and develop fundamental clinical skills such as taking vitals and conducting basic patient interviews, with hours logged and verified.

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About IMA

International Medical Aid provides global internship opportunities  for students and clinicians who are looking to broaden their horizons and experience healthcare on an international level. These program participants have the unique opportunity to shadow healthcare providers as they treat individuals who live in remote and underserved areas and who don’t have easy access to medical attention. International Medical Aid also provides medical school admissions consulting to individuals applying to medical school and PA school programs. We review primary and secondary applications, offer guidance for personal statements and essays, and conduct mock interviews to prepare you for the admissions committees that will interview you before accepting you into their programs. IMA is here to provide the tools you need to help further your career and expand your opportunities in healthcare.