Understanding symptoms and diagnosis

These guides are about how a diagnosis is made, not about whether you have the condition. They describe what clinicians look for, why the process can be slow, and which observations from your own week are useful in the room. They are written so you can prepare. They are not a workup.

A guide in this section cites the sources it used and says when those sources were checked. Research and diagnostic criteria change. If a line here conflicts with what your own clinician told you, your clinician's instructions govern your care. This site does not have your chart.

The cards below are the condition guides published today. Read the one that matches the name you were given, or the name you are trying to understand before an appointment. For the meaning of a care model or a lab abbreviation, use the reference section. For how a practice charges, use approaches to care.

When you finish a guide, you should have a short list of questions and a clearer sense of which details to write down. You should not have a diagnosis. If a fact on the page is wrong, email the address on the corrections policy with the page address and a source for the correction.

You can leave this section without opening a guide and still know what it is for: preparation for a conversation about symptoms and diagnosis. The guides do the explaining. This hub only tells you which explanation is published and how to use it with your own clinician.