Bleeding, technically known as hemorrhaging or haemorrhaging (see American and British spelling differences), is the loss of blood or blood escape 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, 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.

Hemorrhaging is broken down into four classes by the American College of Surgeons' Advanced Trauma Life Support (ATLS).

This system is basically the same as used in the staging of hypovolemic shock.

Individuals in excellent physical and cardiovascular shape may have more effective compensatory mechanisms before experiencing cardiovascular collapse. These patients may look deceptively stable, with minimal derangements in vital signs, while having poor peripheral perfusion. Elderly patients or those with chronic medical conditions may have less tolerance to blood loss, less ability to compensate, and may take medications such as betablockers that can potentially blunt the cardiovascular response. Care must be taken in the assessment of these patients.

Rodney Hylton Smith (born 1972), better known by his stage name Roots Manuva, is a British rapper from Stockwell, South London. He is currently signed to Big Dada.

Smith grew up around Stockwell in South London. His parents were from a small village in Jamaica called Banana Hole where his father was a preacher and tailor. Spending much of his early years in poverty, this and his strict Pentecostal upbringing clearly had an influence on his music as can be seen in many of his tracks such as "Sinny Sin Sins" and "Colossal Insight".

A quote from Smith himself sums up his early discovery of music:

Smith made his recorded debut in 1994 as part of IQ Procedure through Suburban Base's short-lived hip hop imprint Bluntly Speaking Vinyl. He debuted as Roots Manuva the same year on Blak Twang's "Queen's Head" single, before releasing his own single, "Next Type of Motion" the following year through the same label, the hugely influential Sound of Money. 1996 saw the release of his collaborations with Skitz ("Where My Mind Is At"/"Blessed Be The Manner") on 23 Skidoo's Ronin label. The release of "Feva" on Tony Vegas' Wayward imprint followed in 1997. This was also the year that saw the first releases from Big Dada, a collaboration between Coldcut's Ninja Tune label and hip hop journalist Will Ashon.