Fighter pilots often get hemorrhoids resulting from gravity and fighting against G-forces.
Hemorrhoids are swollen veins in the anal or rectal area resulting from an increase in pressure in the lower rectal area. Some occupations can actually increase the likelihood of someone developing hemorrhoids.
For example, jobs that require sitting for very long periods such as office jobs and driving jobs. This is because it causes blood to sit inactive in the lower limbs.
It is also more likely in those who work a job that requires them to stand still uninterruptedly for long periods of time, such as retail and hospitality jobs. This is because, much like with sitting, standing for a long period of time can also cause the lower limbs to struggle to circulate blood properly.
Additionally, jobs that require any weight lifting or intense physical activities can also make a person more likely to suffer with hemorrhoids because sudden or intense physical activities can increase the pressure on the rectum’s blood vessels.
This can also explain why fighter pilots may suffer with hemorrhoids as they spend lots of the job sitting in a plane.