Hemorrhoids can be caused do to a number of things. One of the most common ways you can get hemorrhoids is by having to strain too hard when using the restroom. Usually, people who strain regularly have the highest chance of getting hemorrhoids.
Straining does not only apply to your bowel movement. By lifting weights in the gym, or lifting heavy equipment at work you are putting pressure on your veins which eventually can lead to hemorrhoids.
Women can get hemorrhoids during pregnancy. Another thing to watch out for is being over weight. Being obese puts more pressure on your rectal veins. Age is another factor that is over looked by many.