Why Does the Nose of some people Start Bleeding at a Higher Altitude?

By Shivank Goel|Updated : September 5th, 2022

The nose of some people starts bleeding at a higher altitude because of the decrease in atmospheric pressure with the increasing altitude. As we go higher up, the atmospheric pressure takes a hit and starts coming down, leading to a higher amount of pressure in the blood vessels compared to the outside pressure. This excessive internal pressure causes the blood vessels to rupture.

As a result of this phenomenon, constant incidents occur with mountaineers where the blood vessels of their ears or nose get ruptured and start bleeding.

What is Atmospheric Pressure?

The bleeding of the nose and ears is very common among people moving up to higher altitudes and hilly areas most of the time. This happens due to the 'atmospheric pressure' decreasing on the way up and the internal pressure increasing, causing the blood vessels to rupture and bleed.

The 'atmospheric pressure' is also known as the 'barometric pressure', simply the pressure created within the Earth's atmosphere. It is created because all the air around us has a certain weight, and it exerts pressure on the surface as it gets pulled by Gravity towards the Earth.

Related Questions:-


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  • The bleeding of the nose or ears happens at higher altitudes due to the drop in atmospheric pressure and increase in the internal pressure in the blood vessels causing them to rupture.

  • Atmospheric pressure is the pressure or force exerted on a surface by the air as gravity pulls it towards the surface.

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