You have a duty to consult employees about health and safety issues
This is because they’re likely to have a good idea of how to keep themselves and others safe, given their day-to-day understanding of the job.
The Health and Safety Executive (HSE) explains this here.
See the last 2 sections of this article for guidance on how to have a conversation with staff with a medical condition, and how to move forward after that.
You don’t need a separate risk assessment for staff with medical conditions
Assess staff members’ conditions on a case-by-case basis, rather than having specific risk assessments for different conditions. This is because medical conditions can vary a lot from person