Altitude Sickness on Treks: Causes, Symptoms & Prevention (2025 Guide)

Altitude Sickness on Treks: Causes, Symptoms & Prevention (2025 Guide) Trekking in the Himalayas and other high-altitude regions of India offers breathtaking views and unforgettable experiences. But one of the biggest challenges trekkers face above 2,500 meters is altitude sickness . If not managed properly, this condition can turn a beautiful trek into a dangerous situation. In this guide, we’ll explain the causes, symptoms, prevention, and treatment of altitude sickness so you can trek with confidence and safety. 🌄 What is Altitude Sickness? Altitude sickness, also known as Acute Mountain Sickness (AMS), occurs when your body struggles to adapt to lower oxygen levels at high altitudes. It can affect anyone—regardless of fitness, age, or trekking experience. ⚠️ Common Symptoms of Altitude Sickness Headache (the most common early sign) Nausea and vomiting Loss of appetite Fatigue and weakness Dizziness or lightheadedness Difficulty sleeping If symptoms ...