Bleeding
Loss of blood escaping from the circulatory system / From Wikipedia, the free encyclopedia
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Bleeding, hemorrhage, haemorrhage or blood loss is blood escaping from the circulatory system from damaged blood vessels.[1] Bleeding can occur internally, or externally either through a natural opening such as the mouth, nose, ear, urethra, vagina or anus, or through a puncture in the skin. Hypovolemia is a massive decrease in blood volume, and death by excessive loss of blood is referred to as exsanguination.[2] Typically, a healthy person can endure a loss of 10–15% of the total blood volume without serious medical difficulties (by comparison, blood donation typically takes 8–10% of the donor's blood volume).[3] The stopping or controlling of bleeding is called hemostasis and is an important part of both first aid and surgery.
Bleeding | |
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Other names | Hemorrhaging, haemorrhaging, blood loss |
A bleeding wound in the finger | |
Specialty | Emergency medicine, hematology |
Complications | Exsanguination, hypovolemic shock, coma, shock |