Wrist Pain and DSE: Is a Vertical Mouse Always the Answer?

This is a topic we’ve been discussing more frequently lately, so we thought it would be helpful to pull together some guidance and share it in this week’s article. 

“An employee has reported wrist pain on their DSE self-assessment — should we recommend a vertical mouse?” 

This is a common response, but it assumes the root cause has already been identified – the current mouse is no longer suitable. In practice, wrist discomfort is often multifactorial, and a single equipment change may not address the underlying issue. 

What should the self-assessment have established?
Before considering alternative equipment, it’s important to confirm whether the fundamentals of the workstation and working practices are in place: 

• Chair height adjusted so elbows are level with or slightly above the working surface 

• Wrists maintained in a neutral position (avoiding excessive extension and ulnar/radial deviation) 

• Appropriate work-rest patterns and task variation 

• Adequate desk depth to prevent excessive reach and provide a place to rest the hands when not inputting 

• Mouse positioned close to the body to minimise shoulder abduction 

• No contact stress from desk edges or hard surfaces 

• If a wrist pad is present, is it used well or does it encourage wrist anchoring 

If these factors have not been addressed, introducing alternative equipment is unlikely to be effective in isolation. 

Additional considerations
A more detailed assessment may also need to explore: 

• Relevant medical history (e.g. previous upper limb disorders, inflammatory conditions) 

• Nature, duration, and triggers of symptoms 

• Previous interventions or equipment trials 

• Intensity and pattern of DSE use (e.g. sustained mouse-driven tasks) 

• Psychosocial factors that may influence muscle tension or work patterns 

Understanding the risk factors for wrist pain
Wrist discomfort may arise from a combination of biomechanical and organisational factors, including: 

• Sustained or repetitive wrist extension 

• Ulnar or radial deviation during input device use 

• Static loading of forearm musculature 

• High repetition with insufficient recovery time 

• Excessive grip force or poor mouse fit 

• Contact stress at the wrist or forearm 

• Suboptimal workstation geometry (height, reach distances) 

• High task demand with limited variability 

Where a vertical mouse may help
Vertical mice are designed to reduce forearm pronation and can, in some cases: 

• Promote a more neutral forearm posture 

• Reduce loading associated with sustained pronation (palms facing down) 

• Improve comfort for users experiencing specific rotational strain 

However, they do not address many other risk factors (e.g. repetition, overall posture, contact stress, work organisation), and may introduce new considerations such as altered muscle recruitment and a required period of adaptation. 

The psychology of new equipment
It’s also worth recognising the behavioural aspect. Introducing new equipment can create an immediate perception of improvement — users may feel more comfortable simply because a change has been made (a short-term placebo effect). 

However, if the underlying risk factors remain, symptoms can return once this initial effect wears off. In some cases, they may reappear more severely or present differently, particularly if the new device introduces different movement patterns or muscle demands. This can make it harder to identify the true cause and delay effective intervention. 

Alternative control measures
Depending on the identified risk profile, there may be other solutions that would be better suited than a vertical mouse. For example: 

• Central/roller mice to reduce unilateral load and reach 

• Reducing mouse dependency through keyboard shortcuts or workflow redesign 

• Voice recognition software for high-intensity users 

• Utilising built-in operating system accessibility features 

• Implementing task rotation, micro-breaks, and user education 

Key message
Recommending a vertical mouse without first understanding the underlying causes of the wrist pain, risks addressing surface-level issues rather than the contributing factors — and may not lead to an effective or lasting solution. A structured approach — identifying and mitigating relevant risk factors — is more likely to result in effective and sustainable outcomes. 

If you would like support with DSE assessments or complex cases involving upper limb discomfort, please do get in touch.