Safety Audit · 15,500 ft
Personalized altitude sickness risk assessment for Thamsar Pass Trek. 60 seconds. No health data stored.
Thamsar Pass Trek at a Glance
At 15,500ft, altitude sickness is a genuine high-altitude hazard on Thamsar Pass Trek. The calculator above personalises your risk based on your medical history, prior altitude experience, and this route's specific ascent profile.
Frequently Asked Questions
Extremely high risk.
The primary risks on Thamsar Pass Trek are: Falling deep into a hidden crevasse on the summit glacier, HAPE at 15,500 ft, Being physically broken by the aggressive 'yo-yo' elevation profile. Your operator should brief you on each of these before departure.
Diamox (Acetazolamide) is worth discussing with your doctor if you plan to attempt Thamsar Pass Trek (15,500ft). It is not routinely required for healthy trekkers but is recommended if you have had AMS symptoms on a previous high-altitude trip. Never start Diamox without medical advice — it has side effects including tingling fingers and increased urination.
Absolutely prohibited.
Compare verified operators who carry full oxygen support and pulse-oximetry checks.
Compare operators