YouDive educational guide · References checked 30 September 2026 · Independent instructor and medical review pending. This library does not provide certification, individual medical clearance or a dive plan.
Understand the risk
Possible manifestations include unusual pain, altered sensation, weakness, balance problems, skin changes or unusual fatigue. These can have other causes. The important decision is to seek appropriate help rather than self-diagnose from a checklist.
Recognising possible decompression sickness: what connects
Unusual pain or skin change
Record onset
- Seek prompt medical advice
Weakness or balance change
Possible neurological involvement
- Call emergency services
Symptoms improve
Injury may still be present
- Continue the medical handover
Concept relationships from this lesson. These are discussion points, not a dive profile or emergency treatment sequence. Read the cited sources; qualified review is pending.
Put the knowledge into practice
Stop further diving, note when symptoms began and seek prompt diving-medical advice. Call 000 for serious symptoms such as breathing difficulty, collapse or neurological changes. First-aid oxygen, when available and administered by a trained provider, does not replace evaluation.
What to notice and discuss
| Consider | Why it matters | Planning or learning response |
|---|---|---|
| Unusual pain or skin change | Record onset | Seek prompt medical advice |
| Weakness or balance change | Possible neurological involvement | Call emergency services |
| Symptoms improve | Injury may still be present | Continue the medical handover |
PAUSE & THINK
What would you do?
A buddy feels tingling but wants to wait until tomorrow because the computer stayed within limits.
Reveal the discussion answer
Encourage prompt assessment and provide the dive history. A normal display is not a medical test.
Frequently asked questions
Can I dive again to see whether the symptoms disappear?
No. Do not re-enter the water to diagnose or treat a suspected diving injury.
Sources & further reading
DAN: Decompression illness ↗DAN: Treating decompression sickness ↗Healthdirect Australia: Calling Triple Zero ↗These sources inform this guide; their organisations have not reviewed or endorsed YouDive.
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