Altitude Sickness in Bogotá & Medellín: Symptoms, Prevention & GP Help for Expats and Tourists (2026 Guide)

Updated February 2026 – Bogotá sits at 2,640 meters (8,660 ft), and many new arrivals feel the effects. Here's how to recognize, prevent, and treat altitude sickness (acute mountain sickness / AMS) quickly.

What Is Altitude Sickness?

Altitude sickness (acute mountain sickness or AMS) occurs when your body struggles to adjust to lower oxygen levels at high elevations. In Colombia, it's most common in Bogotá (2,640 m / 8,660 ft) for arrivals from sea level, but can affect sensitive people even in Medellín (~1,500 m / 4,921 ft) or during trips to higher Andean areas.

Symptoms usually start within 6–24 hours of arrival:

• Headache (often the first sign)
• Fatigue, dizziness, or lightheadedness
• Nausea, loss of appetite, or vomiting
• Shortness of breath (especially with exertion)
• Difficulty sleeping or vivid dreams

Most cases are mild and improve in 1–3 days with acclimatization, but severe forms (high-altitude pulmonary/cerebral edema) are rare yet serious—requiring immediate descent and care.

Prevention Tips for Expats & Tourists in Bogotá & Medellín

You can't always prevent AMS, but these steps greatly reduce risk:

• Ascend gradually: Fly into Bogotá? Take it easy the first 1–2 days—no strenuous activity, hiking Monserrate, or heavy sightseeing.
• Stay hydrated: Drink 2–3 liters of water daily (dehydration worsens symptoms). Avoid alcohol and caffeine for the first few days.
• Eat light & balanced: Small, frequent meals high in carbs; avoid heavy or fatty foods.
• Rest & acclimate: Sleep well, walk slowly, and rest more than usual during the first days.

Medellín's lower elevation means milder risk, but if you're sensitive or coming from sea level, the same rules apply.

What to Do If You Experience Symptoms

For mild cases: Rest, hydrate aggressively, use over-the-counter pain relievers for headache, and avoid exertion/alcohol. Symptoms often fade as your body produces more red blood cells.

Seek help immediately if:

• Severe headache not relieved by rest or pain relievers
• Confusion, trouble walking (ataxia), or severe shortness of breath
• Persistent vomiting or worsening after 24–48 hours

Fast English-Speaking GP Care with DoctorsForExpats.com

Our GPs regularly treat hundreds of expats and tourists each year for altitude-related issues. We understand how disruptive AMS can be upon arrival—and we're here to help quickly and comfortably in English.

• Telemedicine consultations (video/call) – same-day assessment, advice on hydration, rest, and any medications your doctor may recommend
• In-home visits in Bogotá, Medellín, and expanding areas
• At-home monitoring or labs if needed
• Transparent out-of-pocket pricing – no insurance hassles

Related: See our guides on Traveler's Diarrhea in Colombia and other travel health topics.

María & Hernán – DoctorsForExpats.com
English-speaking primary care for expats and tourists in Bogotá, Medellín, and beyond.