We'd like to say "yes" every time, however we realise that things aren't always that simple. Disclosing your condition means that your manager has the opportunity to put reasonable adjustments in place for you, and to generally be supportive and understanding of your needs. Your Force can also make allowances if your condition impacts on your performance at work, or causes you to take sick leave. However, there have been cases of staff being treated badly due to a disability (the DPA exists for a reason!) and there is still a stigma around certain conditions - some people would rather keep their disability or condition private. If you're uncertain about whether to disclose, we recommend that you discuss with your local DSN, a Federation or union rep, or a trusted colleague.