How to Remove Dried Blood from a Cotton Pillowcase

Dried blood on a cotton pillowcase can look like a permanent stain, but you can usually lift it with items you already have at home. The key is to act gently and avoid heat, which can set the protein in blood. This guide walks you through a safe, step-by-step method for dried blood on cotton, with precautions to protect the fabric.

Why Dried Blood Is Tricky on Cotton

Blood contains proteins that bind to fabric fibers. When blood dries, those proteins harden, making the stain more stubborn. Cotton is a natural fiber that absorbs liquids readily, so the stain can penetrate deeply. However, cotton is also durable and can handle gentle treatment, which gives you a good chance of success if you follow the right steps.

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What You'll Need

• Cold water (never hot)
• Liquid dish soap (like Dawn)
• Hydrogen peroxide (3% solution)
• Clean white cloths or paper towels
• Soft-bristled brush (optional, for gentle agitation)

Step-by-Step Removal for Dried Blood

1. Soak the stained area in cold water. Place the pillowcase in a basin or sink filled with cold water. Let it soak for at least 30 minutes. This helps rehydrate the dried blood and loosen it from the fibers.
2. Apply a small amount of liquid dish soap. After soaking, remove the pillowcase and gently rub a drop of dish soap into the stain with your fingers or a soft-bristled brush. Work from the outside of the stain inward to avoid spreading it.
3. Rinse thoroughly with cold water. Rinse the area well to remove the soap and any loosened blood. Check if the stain has lightened.
4. If the stain remains, apply hydrogen peroxide. Test on an inconspicuous area first. If safe, pour a small amount of 3% hydrogen peroxide directly onto the stain. You should see it bubble. Let it sit for 5–10 minutes, but do not let it dry.
5. Blot and rinse. Blot the area with a clean white cloth to lift the stain. Rinse again with cold water.
6. Repeat if necessary. If the stain is still visible, repeat steps 4 and 5. For very stubborn stains, you can make a paste of baking soda and water, apply it, and let it sit for 15 minutes before rinsing.
7. Wash as usual. Once the stain is gone, wash the pillowcase in the washing machine using cold water and your regular detergent. Air-dry or use a low heat setting, but check the care label first.