There are many problems faced by the mountaineers during summit. These problems force some of them to go back from the summit. One and most occurring problem is altitude sickness. High Altitude Pulmonary Edema, High Altitude Cerebral Edema and hypothermia are some of the major altitude sickness. The other problems in mountaineering include the avalanches, falling ice, falling rocks and crevasse. Solar radiation and weather condition are the other factors that may create problem during mountaineering.