Before You Begin
NHOS Children's Symptoms Checker is an informational triage aid. It uses a Naive Bayes statistical model to suggest possible conditions based on symptoms you report.
Important Disclaimer
- This is not a medical device and is not a diagnosis. It has not been cleared or approved by the FDA, EMA, TGA, or any other regulatory body.
- Results are generated by a statistical model with a limited condition library (~500 conditions). They may be incomplete, inaccurate, or misleading.
- Always consult a qualified healthcare professional for any medical concern. Do not delay care based on this tool.
- If you feel something is seriously wrong, seek emergency care immediately — regardless of what this tool shows.
- No personal data leaves your device. Nothing is stored or transmitted.
- Emergency numbers: 911 (US) · 999 (UK) · 112 (EU) · 000 (AU).
Continuing means you understand this tool is informational only and does not replace professional medical evaluation.
Emergency Screening
Please answer these critical safety questions first. They help identify situations that require immediate emergency care.
If any answer is Yes, the checker will recommend emergency care — that is by design.
About the Child
Age and sex help us filter conditions that are relevant to your child.
What is the main concern?
Search for the single most important symptom — the one that worries you most.
Any other symptoms?
Select all symptoms the child is currently experiencing. This improves accuracy.
Duration
How long has the child had these symptoms?
Severity
How would you describe the severity?