Public health touches every corner of society. From tracking infectious diseases to shaping the policies that keep our air and water clean, public health professionals create ripple effects that improve the lives of people in every community.
So if you’re wondering what you can do with a public health degree, there are several ways for you to make an impact. This article will help you reflect on your interests, strengths, and career aspirations so you can choose a public health discipline that will allow you to help communities in a way that matters most to you.
Finding Your Public Health Purpose
Public health is an umbrella field made up of specialized disciplines that tackle health issues through systems, data, behavior, or policy. Professionals often collaborate across disciplines and at every level, from local clinics to global agencies. The first step in selecting your path is understanding what public health specialties are available.
Interests and Areas of Public Health
Below is an overview of different public health disciplines. Reflecting on what problems you feel called to solve can help you discover which disciplines most align with your interests:
| Disciplines | Focus | Ideal For |
| Environmental Health Sciences | Investigates how air, water, soil, and toxic chemicals affect human health. | Science-minded climate advocates |
| Population and Family Health | Advances health equity, maternal and child health, adolescent well-being, and sexual and reproductive rights. | Advocates for underserved communities |
| Sociomedical Sciences | Examines how social structures, stigma, and inequality shape health outcomes. | Community-focused individuals interested in sociology, anthropology, or ethics |
| Biostatistics | Uses statistical methods to study health-related data within populations and make evidence-based decisions. | Problem-solvers skilled in quantitative analysis and interested in health research and policy |
| Health Policy and Management | Designs, evaluates, and manages healthcare systems and health policy. | Aspiring CEOs, healthcare consultants, hospital administrators, or nonprofit leaders |
| Epidemiology | Identifies causes and patterns of diseases. | Analytical thinkers drawn to health surveillance and outbreak investigation |
Match Your Public Health Path to Your Skills and Strengths
In addition to your interests, consider what strong suits you possess that would help you succeed in the field of public health:
- Research and Data Analysis: If numbers and evidence-based problem-solving excite you, a biostatistics degree or epidemiology degree might be the right fit for you. These disciplines involve examining data, interpreting trends, and influencing intervention strategies.
- Advocacy: Are you passionate about community engagement? The disciplines of population and family health and sociomedical sciences allow you to work directly with communities to understand social determinants of health and improve outcomes. Explore various careers in social and behavioral sciences here.
- Leadership and Strategy: If communication, organization, and big-picture thinking are your strengths, consider specializing in health policy and management. Learn more about the rising demand for health policy and management experts here.
- Environment or Science-Based Inquiry: Are you motivated by the challenge of solving environmental issues? Do you enjoy making scientific discoveries in the lab? If so, an environmental health degree will allow you to tackle environmental threats head-on.
Defining Your Long-Term Goals for a Career in Public Health
Lastly, reflect on what you’d like to accomplish throughout your career, whether that’s shaping policy from the C-suite, investigating disease patterns in a lab, or driving grassroots change in communities. The table below pairs common long-term goals with the public health disciplines that can turn those aspirations into impact:
| Goal | Recommended Discipline(s) | How You'll Make an Impact |
| Leadership | Health Policy and Management | Lead in healthcare organizations, government agencies, or policy think tanks where strategic decisions shape public health outcomes. |
| Academics/Research | Biostatistics Epidemiology |
Make scientific discoveries and/or teach future practitioners in research labs or doctoral programs. |
| International/ Community-Based Roles |
Population and Family Health Sociomedical Sciences |
Drive health equity in global health organizations, non-governmental organizations (NGOs), or community-led programs. |
| Sustainability & Climate Leadership | Environmental Health Sciences | Influence science-based policy and improve climate resilience for diverse communities. |
Launch Your Career with a Public Health Degree from Columbia University
Columbia University Mailman School of Public Health is a global leader renowned for groundbreaking research, world-class faculty, and fieldwork that tackles real-world challenges. Within the School, six departments offer flexible public health degrees:
- Biostatistics:
- Environmental Health Sciences:
- Epidemiology:
- Health Policy and Management:
- Population and Family Health:
- Sociomedical Sciences:
For a deeper dive, check out our free resource, Choosing Your Path in Public Health Education: A Guide to Master's Degrees at Columbia University Mailman School of Public Health, to explore each program and its offerings.
Whichever public health discipline you choose, you’ll be an integral part of Columbia Mailman’s mission to make health a human right for all.