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, nose, ear or anus, or through a break in the skin.
Desanguination is a massive blood loss, and the complete loss of blood is referred to as exsanguination. Typically, a healthy person can endure a loss of 10–15% of the total blood volume without serious medical difficulties, and blood donation typically takes 8–10% of the donor's blood volume.
- "Bleeding Health Article". Healthline. http://www.healthline.com/adamcontent/bleeding. Retrieved 2007-06-18.
- "Dictionary Definitions of Exsanguination". Reference.com. http://dictionary.reference.com/browse/exsanguination. Retrieved 2007-06-18.
- "Blood Donation Information". UK National Blood Service. Archived from the original on 2007-09-28. http://web.archive.org/web/20070928035216/http://www.blood.co.uk/pages/b36faint.html. Retrieved 2007-06-18.