In order to treat or prevent dehydration, IV fluids are carefully prepared liquids that are injected into a vein. Every cell in our bodies depends on water. In actuality, water makes up around 60% of our bodies. Dehydration occurs when your body does not contain enough water. When a person is critically dehydrated, IV therapy is required. They are applied to patients of all ages who are ill, hurt, becoming dehydrated from physical activity or the heat, or who are having surgery. Rehydrating intravenously is a straightforward, risk-free treatment that is frequently used.