Altitude Sickness

Altitude sickness, also known as acute mountain sickness (AMS), normally occurs when ascending to higher altitudes too quickly. Nepal is home to many high-altitude trekking destinations, it's very essential for tourists to be aware about altitude sickness and take preventive measures.

Here is important information to help you stay safe:

  1. Understanding Altitude Sickness:
  • Altitude sickness is caused by reduced oxygen levels at higher altitudes.
  • It can affect anyone, regardless of age or fitness level.
  • Symptoms include difficulty sleeping, headaches, nausea, dizziness and fatigue
  1. Prevention is Key:
  • Stay hydrated: Drink plenty of water to combat dehydration, a common factor in altitude sickness.
  • Acclimatize gradually: Spend a few days at lower altitudes before ascending to higher elevations.
  • Limit alcohol and avoid smoking, as they can contribute to dehydration.
  1. Recognizing Symptoms:
  • Be aware of early symptoms, such as headaches, fatigue, and loss of appetite.
  • Inform your guide immediately if you experience symptoms.
  1. Altitude Zones:
  • High-altitude zones typically begin at 2,500 meters (8,200 feet).
  • Acute mountain sickness can occur at altitudes above 2,000 meters (6,600 feet).
  1. Acclimatization Days:
  • Many trekking itineraries include acclimatization days to help your body adjust.
  • Use these days for short hikes and rest to aid acclimatization.
  1. Medications:
  • Consult with a healthcare professional before your trip.
  • Acetazolamide (Diamox) is a prescription medication that may help prevent and alleviate symptoms.
  1. Descend if Necessary:
  • If symptoms persist or worsen, descend to a lower altitude immediately.
  • Ignoring symptoms can lead to severe forms of altitude sickness.
  1. Inform Your Guide:
  • Your trekking guide is trained to recognize and manage altitude sickness.
  • Share any concerns or symptoms promptly.
  1. Be Realistic:
  • Listen to your body and be realistic about your physical condition.
  • Don't push yourself too hard, especially if you're not feeling well.
  1. Travel Insurance: - Ensure your travel insurance covers medical emergencies, including evacuation from high altitudes.


  • Altitude sickness can affect anyone, regardless of fitness level or prior trekking experience.
  • Early recognition and appropriate action are crucial for a safe trekking experience.

Prioritize your health and safety during your trek in Nepal. By being aware of altitude sickness and taking preventive measures, you can enjoy the stunning landscapes without compromising your well-being. If you have any concerns, consult your tour guide or a healthcare professional. Safe travels!