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Presenteeism is not simply showing up at work: UK government guidance describes it as being physically present but unproductive. Occupational-health sources also use the term more broadly for health-related losses in productivity while someone is at work, such as difficulty concentrating or reduced work quality. It matters because attendance alone does not show whether work is effective, safe or sustainable—and the causes may lie in a person’s health, workplace conditions, or both.
What does presenteeism mean at work?
The term has more than one use. In practical UK workplace-health guidance, presenteeism means “a person physically at work, but unproductive” (UK government guidance). Occupational-health literature often uses a health-related productivity-loss framing: someone is at work, but a health problem affects how much or how well they can work (CDC-hosted occupational-health discussion).
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Some everyday discussion uses “presenteeism” more narrowly to mean working while ill. That is one possible case, but it is not the only meaning. The broader framing can cover reduced quantity or quality of work, time spent off task, difficulty interacting with others, or effects associated with an unsatisfactory work culture. These are possible manifestations, not inevitable effects in every person or job.
How can presenteeism affect workplace health?
It can affect a worker’s functioning
Health-related problems may make it harder to concentrate, complete tasks, communicate or maintain work quality. The World Health Organization says poor mental health can affect cognitive, behavioral, emotional and social functioning, physical health, safe work and performance (WHO: Mental health at work). The effect will vary by person, task and circumstances; presence does not by itself reveal the extent of any impairment.
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It can matter for coworkers and safety
When someone attends with an infectious illness, coworkers may also be exposed. In other situations, difficulty concentrating or reduced functioning could be relevant to safe work, particularly where tasks carry hazards. These are reasons to consider the actual work and health context—not grounds to assume that every worker who is less productive presents a safety risk.
It can reflect workplace conditions
Presenteeism should not be treated as laziness or a bad attitude. The CDC-hosted discussion gives examples of pressures that may lead people to attend while ill, including strict attendance policies, fear of losing a day’s wages and job insecurity. Those examples do not constitute a complete explanation, and a worker’s health and working conditions can interact.
Presenteeism and absenteeism are different
Absenteeism is absence from work; presenteeism concerns reduced functioning while at work. The two can relate to the same health and workplace issues, but one cannot be used as a proxy for the other. An attendance record may show that a person was present or absent; it does not, on its own, establish their productivity or health.
UK government guidance reports 131 million days lost to sickness absence in 2017, including days attributed to minor illnesses, musculoskeletal conditions and mental-health issues. Those are absence figures, not estimates of presenteeism. The same guidance reports a £15 billion annual societal cost of workplace injuries and ill health for 2016–17, excluding cancer; that broader cost is not a presenteeism estimate (UK government guidance).
Why is presenteeism hard to measure?
Unlike absence, reduced productivity at work is not directly visible in a single attendance record. Measurement also depends on what “good productivity” means in a particular role and which baseline is used. The CDC-hosted occupational-health discussion identifies administrative records, units of production and self-reports as possible approaches, but none is a universal gold standard.
A useful measure should make clear what it captures. Self-reported difficulty, recorded output and administrative data answer different questions; results from one job, population, health condition or time period should not automatically be generalized to another. The sources cited here do not establish a single general prevalence or cost figure for presenteeism.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.What can employers do to prevent it?
Effective prevention addresses both health and the conditions in which work is done. The International Labour Organization and WHO define occupational health as “the promotion and maintenance of the highest degree of physical, mental and social well-being of workers in all occupations.” Their framing places responsibility for safe and healthy working conditions on employers and calls for worker participation in prevention (ILO: Safety and health at work).
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NIOSH’s Total Worker Health approach prioritizes hazard-free work and integrates protection from safety and health risks with prevention and well-being (NIOSH: Total Worker Health). In practice, this means addressing hazardous conditions and safeguards rather than relying only on individual wellness advice.
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Manage psychosocial risks with workers
An ILO report published in 2026 identifies job demands, workload, role clarity, autonomy, working-time arrangements, and fair and transparent processes as factors relevant to proactive psychosocial risk management (ILO, 2026: Psychosocial risks and work-related stress). Employers can use these areas to examine whether work is organized in ways that support health, while involving workers and their representatives in identifying risks and shaping changes.
Use attendance policies that do not create avoidable pressure
Because strict attendance rules, pay concerns and job insecurity are cited as reasons someone may work while ill, employers should consider whether their policies inadvertently reward attendance over health or safe work. The appropriate response depends on the job and circumstances; the goal is to make it possible to address illness and work risks without blaming workers for reduced output.
What the wider risk statistics do—and do not—show
The ILO’s 2026 report attributes more than 840,000 deaths annually, nearly 45 million disability-adjusted life years lost each year, and estimated annual losses of 1.37% of global GDP to psychosocial risk factors. These figures describe the report’s account of psychosocial risks; they are not estimates of deaths, lost healthy years or economic costs caused by presenteeism itself.
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