Blood in dreams means wealth. According to the western point of view, it is also a symbol of vitality.
Dreaming of arm bleeding may mean that you lost money because of your mistake.
I dreamed that I saw someone bleeding, but I was very happy inside, suggesting that I was hostile to that person or had a desire to attack him.
Dream that someone has blood on his clothes, and this person in the dream may encounter disaster or accident.
Dreaming of vomiting blood in the head and neck of an animal or a person who has been cut open indicates that you will get a lot of money, have a successful career and become famous.