Bleeding, technically known as hemorrhaging or haemorrhaging, 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 mouthnoseearurethravagina or anus, or through a break in the skinDesanguination 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 donationtypically takes 8–10% of the donor’s blood volume.