Hypovolemia is a medical condition that occurs when there is a decrease in the volume of blood in the body. This condition can be caused by a variety of factors, including dehydration, blood loss, and extensive burns. In medical terminology, hypovolemia is often referred to as "hemorrhagic shock" or "low blood volume." Other synonyms for hypovolemia include "fluid depletion," "blood loss," and "volume depletion." Some of the symptoms of hypovolemia include dizziness, fainting, confusion, and extreme thirst. Treatment for hypovolemia depends on the underlying cause of the condition, and may require fluid replacement therapy or immediate emergency care.