Altitude Sickness Guide for Annapurna Trekkers 2026
Acute Mountain Sickness (AMS) is the real risk above 3,000 m. Here's how to stay safe.
Symptoms
Headache, nausea, dizziness, loss of appetite, poor sleep.
Prevention
- Climb high, sleep low
- 3+ liters of water daily
- Acclimatization days (e.g., Manang on the Circuit)
- No alcohol at altitude
What to do
If symptoms worsen at rest — descend immediately. Our guides carry pulse oximeters and follow a strict evacuation protocol. Travel insurance with helicopter cover is mandatory on high routes.
Read the full section in our Ultimate Annapurna Trek Guide (Altitude Sickness Guide).
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