🩺 Check your symptoms online

If you or someone you care for is feeling unwell, the NHS 111 Wales online symptom checkers can help you work out what to do next.

Choose the symptom or health problem that best describes what is happening and answer a series of questions to receive appropriate NHS advice.

🔎 How can the symptom checkers help?

📋 Answer questions
You'll be asked questions about your symptoms and how you are feeling.
🧭 Find out what to do next
The checker will provide advice based on the answers you give.
🏥 Find the right level of care
You may be advised to self-care, contact a healthcare professional, call 111 or seek urgent help.
🔤 Search by symptom
Browse or search the NHS 111 Wales collection of symptom checkers.

✅ Start a symptom checker

Visit NHS 111 Wales and search for the symptom or health problem you are experiencing.

🩺 Check your symptoms

This link will open the NHS 111 Wales website.

⚠️ Important

Online symptom checkers do not replace medical advice. The advice you receive is based on the answers you provide, so answer all questions carefully and accurately.

If you are worried about your symptoms, they are getting worse, or you are unsure what to do, seek advice from a qualified healthcare professional.

👶 Advice for children

NHS 111 Wales advises that if the person who is unwell is under 12 years old, or you are unsure what to do, you should contact NHS 111 Wales by calling 111.

📞 Need urgent health advice?

If you are feeling unwell and the problem is urgent but not a life-threatening emergency, call NHS 111 Wales.

The telephone service is available 24 hours a day, 7 days a week and calls are free from landlines and mobile phones.

📞 Call 111

🚨 Call 999 in an emergency

Do not use an online symptom checker if someone has a serious or life-threatening medical emergency.

Call 999 immediately for emergencies such as:

  • severe difficulty breathing
  • suspected heart attack or severe chest pain
  • suspected stroke
  • severe injury or heavy bleeding that cannot be stopped
  • someone who is unconscious or cannot be woken
  • someone who is currently having a seizure
📞 Call 999