How long should the bandage over post-operative sutures be kept clean and dry?

• A. 1-2 hours
• B. 24-48 hours
• C. 3-4 days
• D. 1 week

Answer: (B)

Keeping the bandage clean and dry for about 24 to 48 hours covers the most vulnerable early healing window. This dry, protected environment helps the initial clot form and the wound edges stay in place while reducing the chance of infection from moisture and bacteria carried in with a wet dressing. If you wait longer than this window, moisture can accumulate, increasing infection risk and delaying healing; if you keep it dry for only a few hours, the wound isn’t adequately protected during the critical first day or two. After this initial period, follow your clinician’s instructions for dressing changes and keeping the area clean and dry.