Health Conditions

How these condition pages are organised

Each page follows the same clinical logic a doctor works through: what the condition is, how it is diagnosed, which blood tests support or exclude it, what the numbers mean, and how it is monitored once treatment starts. Where a condition has recognised stages or severity bands, those are set out explicitly, because the treatment threshold and the diagnostic threshold are frequently different numbers and confusing the two is a common source of anxiety.

Diagnosis is rarely a single test

Very few conditions are diagnosed on one result. Diabetes normally requires either two abnormal results on separate days or one abnormal result alongside clear symptoms. Coeliac disease needs serology interpreted while the person is still eating gluten, and usually a biopsy. Gout is confirmed definitively by finding crystals in joint fluid, not by a raised uric acid, which is why a normal uric acid during an attack does not exclude it.

The practical consequence is that a single abnormal number you find on a report is a reason for a conversation, not a diagnosis you can give yourself. It is also why we list what a test cannot tell you alongside what it can.

Living with a long-term condition

For chronic conditions, most of the work happens between appointments. Knowing which of your numbers is the one being tracked, roughly what the target is, and how often it should be rechecked makes those appointments considerably more productive. Knowing which symptoms mean "book a review" and which mean "seek help today" matters more still, and each page states both.