What Is Absenteeism and How to Address It at Work

What Is Absenteeism?

Absenteeism is a word used to describe chronic absence in the workplace or education. Unlike occasional time off, absenteeism is a pattern of frequent or prolonged absence, where there may or may not be a clear reason for it. 

What Causes Absenteeism?

It can be tricky to pinpoint the exact causes of absenteeism. Individuals may simply be dealing with recurring illnesses or a run of bad luck with seasonal bugs. But sometimes, there’s more to the story. People may mask underlying issues or become unaware there’s a deeper problem affecting their health and recovery.

According to a study by Acas, the three most commonly reported reasons for absence in the workplace in 2026 were:

• Minor illnesses like coughs, colds, flu, and stomach bugs (62%) 
• Stress, anxiety, depression, and other common mental health problems (32%)
• Back pain (19%)

When we look at these stats, the most commonly reported – minor illnesses – might seem easy to rationalise: winter brings colds, staff with young children often pass bugs around, and people naturally become more susceptible to illness when they’re sleep deprived or run down. But we might not always be seeing the full picture. 

Research shows that employees experiencing mental health difficulties can be more likely to cite “minor illness” as the reason for their absence, instead of disclosing what’s really going on. And even when people do report stress or anxiety openly, it’s worth asking how much the working environment itself contributes. Is the pressure too high? Are sensory needs overlooked? Is there a lack of flexibility that makes coping harder? 

If someone reports back pain, is it age-related wear and tear? Or could it be factors like unsuitable furniture, long hours spent sitting, or repetitive strain? Stats from 2019 show prolonged periods of sitting were estimated to cost the NHS approximately £700 million per year. In many cases, hunting for causes becomes a “chicken or egg” scenario where occupational health advisors have to figure out whether issues have arisen independently or if workplace conditions have contributed. Quite often, it can be a mixture of both.

Absenteeism, Mental Health, and Chronic Conditions

When health issues become chronic, people need to take longer periods off work to rest and recover. In some cases, long-term physical conditions like chronic musculoskeletal problems or ongoing pain lead to predictable patterns of absence which can be discussed and managed. Yet mental health-related absence patterns can be harder to predict. Staff may “play down” symptoms or attribute their time off to something more socially acceptable, like a migraine or a stomach bug. When this happens, difficulties can linger for longer, leading to extended recovery times and more frequent absence.

A 2021 study highlighted the impact of this. Researchers found that changes in mental health had more than three times the effect on absenteeism compared to changes in physical health. When we think about the weight of statistics like these, it’s clear that battling absenteeism is just as much about reducing mental health stigma and spotting signs early as it is about managing the practicalities of time off. 

The Difference Between Absenteeism and Presenteeism

Absenteeism isn’t the only pattern that emerges when staff struggle with their health. Presenteeism – where people show up to work sick – is also a common issue, particularly for those in healthcare jobs or roles centred around caring for others. Although the motivations can be similar, the difference between presenteeism and absenteeism is whether someone stays home to recover or pushes through and comes in anyway.

When people get into the habit of showing up to work while unwell, this can eventually lead to burnout or prolonged illness, which then increases the risk of more absenteeism, creating a vicious cycle.

How Employers Can Reduce Absenteeism

According to the National Institute for Health and Care Excellence (NICE), much of the information we have on managing sick leave comes from outside the UK and doesn’t include smaller businesses. That means there’s still more to learn about what really works when it comes to reducing workplace illness and absence. Despite this, research does point to some common themes. A few factors stand out:

Tackling stigma: Polling from YouGov reveals that nearly two in three workers (63%) who have taken time off for mental health reasons have, at some point, given a different explanation. To prevent these absences, we need to make sure staff feel safe to talk about mental health issues, especially if work is contributing. Despite an increased investment in schemes like Employee Assistance Programmes and wellbeing support, research shows that stigma around mental health is increasing. By having  difficult conversations and challenging negative ideas safely, bit by bit, we make it easier for people to be honest about what they’re experiencing.

Better Work Environments: Many older workspaces are designed with neurotypical and non-disabled staff in mind and could be made much more accessible. If you’re an employer, speak openly to staff about their needs. You might introduce elements like calming sensory zones, assistive technology, comfortable ergonomic furniture, “stretch breaks”, or adjustable workstations. By removing barriers, you make day-to-day work more manageable for those who need it. 

Clear policies for sickness absence: According to NICE, businesses need to create clear policies when it comes to sickness leave. From early interventions to return-to-work plans, employees should know exactly what happens when they’re sick so they feel reassured that there’s a clear, current process to follow, not a confusing mix of guesswork or outdated paperwork.

FAQs

What is absenteeism?

Absenteeism is repeated or prolonged absence from work, school, or college. Different organisations sometimes have different understandings of what absenteeism is, but most treat it separately from annual leave and other planned, authorised time off. Whether authorised sick leave is included may vary between organisations. Often, the focus is less on whether an individual absence is authorised and more on the frequency or duration of absences.

What is the difference between absenteeism and presenteeism?

Absenteeism means repeatedly staying home when unwell; presenteeism means coming in despite being sick, often leading to longer‑term problems.

How can employers reduce absenteeism in the workplace?

There’s no single set solution for reducing absenteeism – there are many factors to consider. However, tackling stigma, improving workplace accessibility, and creating clear, supportive sickness‑absence policies can go a long way in making a difference.