Disclosing a Health Condition at Work: When and How

The decision of whether, when, and how to disclose a chronic health condition to an employer is one of the more consequential and poorly supported decisions that people with health conditions face in professional life.

There is no universal right answer. The appropriate decision depends on the nature of the condition, the specific workplace culture, the legal framework in place, the relationship with the relevant manager, and a range of personal factors that vary significantly between individuals.

You Are Not Required to Disclose

The first thing worth stating clearly is that, in the UK, you are not legally required to disclose a health condition to a prospective employer unless it directly affects your ability to perform the core functions of a role. The Equality Act 2010 provides protections against discrimination on the grounds of disability, and those protections operate whether or not you have disclosed.

Many people carry an implicit assumption that disclosure is obligatory or that non-disclosure is dishonest. It is neither. Your health history is your information. The decision to share it is yours.

When Disclosure Might Help

That said, there are situations where disclosure is genuinely in your interest. If your condition requires adjustments, to working hours, environment, or workload management during flare-ups, then disclosure is usually necessary to access those adjustments formally.

If your condition affects your performance in ways that are visible without context, then proactive disclosure with a clear account of what you need gives your employer the information to support you, rather than leaving them to interpret your performance without it.

How to Have the Conversation

When you choose to disclose, framing matters. The most useful frame is forward-looking and practical: what you have, what the typical impact is, and what you need from the organisation to manage it effectively. This positions you as someone who has thought clearly about your own management (which is usually accurate) rather than someone delivering unwelcome news.

Consider having the conversation in writing as well as verbally, so there is a clear record of what was disclosed and what was agreed. This is not cynicism. It is practical protection for both parties.

Managing Disclosure Over Time

Disclosure is not a single event. As your condition changes, as your role changes, as the support you need evolves, the conversation will need to be revisited. This is normal and expected. The ideal is a working relationship where your health is neither the most defining thing about you professionally nor a secret you carry alone. That ideal is achievable more often than current workplace conversations about health would suggest.