Symptom Checker

Select the symptoms you’re experiencing to see related conditions. This is a navigation aid, not a diagnosis — always confirm with a doctor.

Many conditions share overlapping symptoms — fatigue alone could point to dozens of different things, from a simple lack of sleep to a thyroid or blood sugar issue. This tool works by matching the symptoms you select against the symptom descriptions across our library of 216 conditions, then showing you the closest matches ranked by how many of your selected symptoms appear in each. It's designed to help you find relevant reading faster, especially when you're not sure what a particular combination of symptoms might be related to. It cannot examine you, order tests, or take your full medical history into account the way a doctor can, so please treat the results as a starting point for research, not an answer in itself.

This tool matches your selected symptoms against our disease library and is meant purely to help you find relevant reading — it cannot diagnose any condition. Many conditions share overlapping symptoms, and only a doctor can tell you what’s actually going on.