Altitude Sickness: Symptom and Causes


  • Lack of appetite, nausea, or vomiting
  • Fatigue or weakness
  • Dizziness or lightheadedness
  • Insomnia (sleeplessness)
  • Pins and needles
  • Malaise (feeling of being not well)
  • Shortness of breath 
  • Nose bleeding
  • Persistent rapid pulse
  • Drowsiness
  • Bubbling sound in the chest
  • Coughing up pink, frothy liquid
  • Clumsiness and difficulty walking
  • Confusion leading to loss of consciousness
Altitude Sickness symptoms


  • The amount of oxygen required sustaining mental and physical health decreases with height and the air becomes thinner.
  • The reduced air pressure and lower oxygen levels at high altitudes causes the symptoms of altitude sickness.

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