Decompression Sickness (DCS) Prevention in Komodo
Decompression sickness — commonly called "the bends" — occurs when dissolved nitrogen in your blood and tissues forms bubbles during or after ascent. Komodo's multi-dive days, deep sites, and strong currents make DCS awareness especially important.
DCS Risk Factors Specific to Komodo
| Risk Factor | Why It's Relevant in Komodo |
|---|
| Multiple dives per day | 3–4 dives daily accumulate nitrogen progressively |
| Multi-day diving | Liveaboards may involve 4–7 consecutive dive days |
| Depth | Many popular sites have working depths of 20–30m |
| Strong currents | Increased exertion raises nitrogen uptake and can cause rapid depth changes |
| Cold water | South Komodo's cold thermoclines reduce off-gassing efficiency |
| Dehydration | Tropical heat, sun exposure, and diving are all dehydrating |
Prevention Strategies
- Use a dive computer: Essential for tracking multi-dive nitrogen loading. Set conservative mode for multi-day trips.
- Always do a 3-minute safety stop at 5 metres: This is mandatory protocol on every Komodo dive.
- Ascend slowly: Maximum 9 metres per minute (most computers set 10m/min).
- Stay hydrated: Drink at least 500ml of water between every dive. Dehydration is one of the biggest modifiable DCS risk factors.
- Dive Nitrox: Enriched air reduces nitrogen loading, providing a significant safety margin on multi-dive days.
- Plan conservative profiles: Avoid pushing to your no-decompression limits, especially on your 3rd or 4th dive of the day.
- Rest day on long trips: Take a no-dive day every 3 to 4 days on extended liveaboard trips.
- Avoid alcohol between dives: Alcohol dehydrates and impairs the body's ability to off-gas nitrogen.
- No-fly time: Wait at least 18 to 24 hours after your last dive before flying.
DCS Symptoms to Watch For
- Joint pain (especially shoulders, elbows, knees)
- Tingling or numbness in extremities
- Unusual fatigue
- Dizziness or vertigo
- Skin rash or mottling
- Difficulty breathing
If you suspect DCS: Administer emergency oxygen, do not re-enter the water, and get to Siloam Hospital's hyperbaric chamber in Labuan Bajo as quickly as possible. Call DAN Emergency: 0061 8 8212 9242.
