Nepal Trekking Safety and Health Guide (2026)

Safety is the single most important thing to get right on a Nepal trek. The mountains are beautiful but unforgiving. This hub covers altitude sickness, insurance, weather, emergency evacuation, packing, and food safety — each section links to a detailed guide.

1. Altitude sickness (AMS)

Acute Mountain Sickness is the #1 risk on any trek above 3,000 m. Read the full Altitude Sickness Guide for symptoms, prevention and treatment. Key rules:

• Ascend slowly — gain no more than 300-500 m of sleeping altitude per day above 3,000 m.
• Hydrate — drink 3-4 litres of water a day.
• Recognise symptoms — headache, nausea, dizziness, loss of appetite are early signs. If they worsen, descend immediately.
• Diamox (acetazolamide) — 125 mg twice daily helps acclimatisation. Consult your doctor before departure.

For altitude sickness specific to the Manaslu Circuit, see Health and Safety on the Manaslu Circuit.

2. Trekking insurance

Standard travel insurance does not cover trekking above 3,000-4,000 m or helicopter evacuation. You need a policy that explicitly covers high-altitude trekking and emergency helicopter rescue. Read the full Nepal Trekking Travel Insurance Guide for recommended providers and what to check.

3. Safety alerts and trail conditions

Trail conditions change — landslides, bridge collapses, road blockages, and weather events can close routes. Read current alerts in Nepal Trekking Safety Alert and BP Highway Blockage.

4. Trekking safety essentials

The Trek Safety Essentials guide covers the fundamentals: river crossings, weather exposure, hypothermia, and group protocols. Also see the Nepal Trekking Safety Guide 2026.

5. Packing list

What you carry matters. Read the Nepal Trekking Packing List 2026 for a complete item-by-item checklist by season and altitude.

6. Common mistakes

Avoid the most frequent errors trekkers make in 10 Common Nepal Trekking Mistakes.

7. Weather and seasons

For weather planning by month, see Best Time to Visit Nepal. For current weather updates, see Nepal Weather Forecast.

Quick FAQ

At what altitude does altitude sickness start?

Symptoms can begin above 2,500 m but are most common above 3,500 m. The risk increases with altitude and speed of ascent. Above 4,000 m, acclimatisation days are essential.

How much does a helicopter rescue cost?

A helicopter evacuation from Everest Base Camp to Kathmandu costs USD 3,000-5,000. This is why insurance that explicitly covers helicopter rescue above 5,000 m is non-negotiable.

Is trekking in Nepal safe for solo female travellers?

Yes, Nepal is generally safe for solo female trekkers. As of 2024, a licensed guide is required in national parks, which adds an extra layer of safety. Exercise normal precautions in Kathmandu and on trail.