4. Trauma
External trauma is one of the main causes of internal bleeding. There are several instances of trauma that can result in bleeding inside your body. Experiencing a car accident, falling from a great height, or even dropping a heavy object on your body can cause internal damage and bleeding. Blunt trauma is when your body collides with another object, most often at high speed.
The can be another person during a sports activity, or with a solitary object such as a tree or bench. Either way can result in broken blood vessels or damaged organs that bleed inside of your body.
Penetrating trauma such as being stabbed, shot, or falling on something sharp can also cause internal bleeding. Anything that enters the body has the potential to tear a hole into blood vessels which will result in bleeding internally. In most cases, some form of surgery is required to repair the damage.