Bleeding, technically known as hemorrhage (American English), haemorrhage (British English), or hæmorrhage, is the loss of blood from the circulatory system. Bleeding can occur internally, where blood leaks from blood vessels inside the body or externally, either through a natural opening such as the vagina, mouth or rectum, or through a break in the skin.
The complete loss of blood is referred to as exsanguination, and desanguination is a massive blood loss. Loss of 10-15% of total blood volume can be endured without clinical sequelae in a healthy person, and blood donation typically takes 8-10% of the donor's blood volume.
Bleeding Overview
Bleeding classification
Gangrene classification
Boil classification
Big Mac Index
Anatomical terms of location
Visible spectrum
EC number