Why Nigerians Must Invest In Preventive Medicine -By Yussuf Mubaraq Damilare

Preventing disease is not only a medical responsibility; it is an investment in longer lives, stronger families and a healthier Nigerian society.

A hospital visit often begins with a simple hope: to get well. Yet, for many Nigerians, seeking medical attention can come with financial pressure, long waiting times and uncertainty about the cost of treatment. In some cases, people delay visiting a healthcare facility until an illness becomes severe. Unfortunately, by the time they seek help, a condition that could have been prevented or detected early may have developed into a life-threatening problem.

This reality raises an important question: why do we often wait until illness strikes before taking our health seriously?

Nigeria must begin to place greater emphasis on preventive medicine—not merely as an alternative to treatment, but as a fundamental pillar of public health. A country that prioritises preventing illness has a better opportunity to reduce avoidable deaths, improve life expectancy and protect its citizens from the financial burden of disease.

Prevention Is Better Than Cure

Preventive medicine involves measures taken to prevent diseases, identify health risks early and reduce the likelihood of complications. These measures include vaccination, routine medical check-ups, blood pressure monitoring, diabetes screening, health education and lifestyle changes.

Many serious health conditions do not produce obvious symptoms in their early stages. Hypertension, for instance, can remain undetected for years while increasing the risk of stroke, heart disease and kidney complications. Similarly, type 2 diabetes may progress without noticeable warning signs until complications emerge.

Regular screening and early intervention can help identify these conditions before they cause significant damage. Although screening cannot prevent every disease or guarantee a positive outcome, it gives patients and healthcare professionals a better opportunity to act before a problem becomes more difficult to manage.

For Nigeria, where healthcare resources are under considerable pressure, prevention should be recognised as an essential part of an effective and sustainable health system.

The Financial Cost of Waiting

One of the strongest arguments for preventive medicine is its potential to reduce avoidable healthcare expenses. Treating advanced disease can require hospital admission, surgery, prolonged medication, rehabilitation and repeated consultations. These costs can place considerable pressure on individuals and families, particularly when treatment must be paid for out of pocket.

Prevention also has costs. Screening programmes, vaccines, health education and routine consultations require funding. However, appropriately designed preventive programmes can reduce the need for some expensive treatments and help people avoid complications that might otherwise affect their ability to work and earn an income.

Consider a person who discovers high blood pressure during a routine health check. With appropriate medical guidance, affordable medication when necessary and regular monitoring, the person may reduce the risk of serious complications. Without diagnosis and treatment, the same condition could eventually result in a stroke or other medical emergency.

The lesson is straightforward: investing in health before a crisis occurs can protect both lives and household finances.

A Necessary Response to Nigeria’s Disease Burden

Nigeria faces the continuing challenge of infectious diseases alongside a growing burden of non-communicable diseases, including diabetes, cardiovascular disease and some forms of cancer.

Preventive medicine can address these challenges in several ways. Vaccination helps protect individuals and communities against vaccine-preventable infections. Early antenatal care can identify pregnancy-related risks. Screening can detect selected diseases at an earlier stage, while health education can encourage safer behaviours and timely medical attention.

For chronic diseases, prevention includes promoting healthy diets, regular physical activity, tobacco avoidance and the appropriate management of risk factors such as high blood pressure and elevated blood glucose.

Cancer prevention and early detection also deserve greater attention. Public awareness, vaccination against certain cancer-causing infections, appropriate screening and timely evaluation of warning signs can reduce risks or improve the chances of successful treatment, depending on the disease.

These interventions must be evidence-based and appropriate for each population. Not every screening test is necessary for everyone, and people should seek guidance from qualified healthcare professionals about the services best suited to their age, health history and individual risks.

The Responsibility of Government and Healthcare Institutions

Although individuals have an important role in protecting their health, preventive medicine cannot succeed through personal responsibility alone. Government must create an environment in which prevention is accessible, affordable and practical.

Primary healthcare centres should be adequately equipped to provide immunisation, maternal and child healthcare, blood pressure checks, diabetes screening and essential health education. These services should reach rural communities and low-income populations, not only people living in major cities.

Health insurance coverage should also support appropriate preventive services. When people fear that even a basic consultation will lead to unaffordable expenses, they may avoid seeking care until their condition deteriorates.

Furthermore, government agencies should strengthen public-health surveillance, improve access to reliable health information and support community-based programmes that encourage early diagnosis.

Healthcare professionals, including doctors, nurses, pharmacists and laboratory scientists, also have a vital role in educating patients and identifying risks. Their contribution should be supported through adequate staffing, professional development and improved working conditions.

Changing the Public’s Attitude Towards Health

One of Nigeria’s greatest challenges is the tendency to associate medical attention primarily with illness rather than prevention. Many people seek care only when they experience pain or notice serious symptoms, overlooking the value of routine health assessments.

This attitude must change.

Schools, workplaces, religious organisations, community groups and the media can help make preventive healthcare a normal part of everyday life. Public campaigns should explain the importance of vaccination, regular check-ups, healthy eating and early medical consultation in language that people can understand.

At the same time, health communication must avoid blaming individuals for conditions influenced by poverty, food insecurity, environmental risks and limited access to medical services. Encouraging healthier choices is important, but people must also have the resources and opportunities to make those choices.

Preventive medicine will be most effective when public awareness is matched by accessible healthcare services.

Longer Lives Begin With Better Decisions

Life expectancy is influenced by many factors, including healthcare access, nutrition, sanitation, education, economic circumstances and the wider environment. Preventive medicine cannot solve all these challenges, but it is an important part of the solution.

When diseases are prevented, detected early or managed before complications develop, people have a better chance of maintaining their health, remaining productive and enjoying a higher quality of life.

For Nigeria, investing in preventive medicine should therefore be viewed as an investment in national development. A healthier population can strengthen families, reduce avoidable healthcare pressures and support economic growth.

The future of healthcare must not be built around treating illness alone. It must also focus on preventing disease, identifying risks early and ensuring that people receive appropriate care before their conditions become emergencies.

Ultimately, Nigerians should not have to wait for a medical crisis to begin caring for their health. Prevention must become a shared national priority—supported by government, healthcare institutions, communities and individuals.

The true value of preventive medicine is not simply the money it may save or the illnesses it may avert. It is the lives it can help protect and the healthier future it can make possible for Nigeria.