What are the causes of acute haemorrhage?

A) There are many possible causes of hemorrhage, including:

1. Alcohol, drug, or tobacco use that is heavy or long-term (bleeding in the brain).
2. Blood clotting disorders.
3. Cancer.
4. Complications from medical procedures, such as surgery or childbirth.
5. Damage to an internal organ.
6. Hereditary (inherited) disorders, such as hemophilia and hereditary hemorrhagic telangiectasia.
7. Injuries, such as cuts or puncture wounds, bone fractures,s or traumatic brain injury.
8. Violence, such as a gunshot or knife wound, or physical abuse.
9. Viruses that attack the blood vessels, such as viral hemorrhagic fever.

B) Depending on the location or cause, a hemorrhage might be called:

1. Bruise or hematoma (a particularly bad bruise). Both involve bleeding just under the skin.
2. Hemothorax, blood collecting between the chest wall and lungs.
3. Intracranial hemorrhage, bleeding in the brain.
4. Nosebleed.
5. Petechiae, tiny spots on the skin that may be purple, red, or brown.
6. Postpartum hemorrhage, more bleeding than normal after childbirth.
7. Subarachnoid hemorrhage, a type of stroke that can be caused by head trauma.
8. Subconjunctival hemorrhage, broken blood vessels in the eye.
9. Subdural hematoma, blood leaking into the dura mater, the membrane between the brain and skull.