Answer
Mar 18, 2026 - 11:53 AM
Saline is used instead of sterile water in many medical settings because it contains electrolytes that closely match the body’s natural fluid balance. This makes it isotonic and less likely to irritate tissues or disrupt cells.
Sterile water does not contain electrolytes and is hypotonic, which can make it less suitable for certain applications. Because of this, saline is often preferred for wound care, irrigation, and respiratory use where maintaining tissue compatibility is important.
