Bleeding

Bleeding, technically known as hemorrhaging or haemorrhaging (see American and British spelling differences), is blood escaping 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 mouth, nose, ear, urethra, vagina or anus, or through a break in the skin. Hypovolemia is a massive decrease in blood volume, and death by excessive 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 (by comparison, blood donation typically takes 8–10% of the donor's blood volume). The stopping or controlling of bleeding is called hemostasis and is an important part of both first aid and surgery.

Classification

Blood loss

Hemorrhaging is broken down into four classes by the American College of Surgeons' advanced trauma life support (ATLS).

Bleeding (roads)

Bleeding or flushing is shiny, black surface film of asphalt on the road surface caused by upward movement of asphalt in the pavement surface. Common causes of bleeding are too much asphalt in asphalt concrete, hot weather, low space air void content and quality of asphalt.

Bleeding is a safety concern since it results in a very smooth surface, without the texture required to prevent hydroplaning.

See also

References

Bleeding (disambiguation)

Bleeding usually means the loss of blood from the body.

Bleeding, bleed or bleeder may also refer to:

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