Seriously ill travelers should not consider trying to leave Tibet by road, as the difficulties and uncertainties of such journey unacceptable risks. Your only choice is to fly. You should have travel insurance cover such contingencies. The hospital can give you a medical statement to use in claiming evacuation expenses.

A sick person, who can be accompanied by a relative or helper, can get on any CAAC flight without advance booking or notice. He should arrive at the airport at least an hour before boarding-time and should have letters in Chinese from a hospital or other competent authority stating the emergency and the need for evacuation. If the plane is full, other passengers will be taken off to make room. Emergency passengers can buy tickets on the spot at the airport, but must be carrying the exact fare in foreign exchange certificate. The pilot can radio ahead to Chengdu, giving details of the emergency and requesting preparations at the airport, so carry the medical statement ( in Chinese ) to show to the pilot and cabin staff.

Oxygen bags can be obtained from CITS at the Holiday Inn for the journey to the airport. As soon as the plane takes off, the cabin will be pressurized to seal-level pressure, bringing relief to patients with lung or breathing problems.

You can go for check-ups or further treatment to the modern and excellent West China Medical University Hospital in Chengdu, which has good dental care.