[header] How to clean blood from walls [title] Treat blood stains as soon as possible. [step] Blood stains will set over time and may seep into deeper layers of your wall, making them more difficult to remove. If possible, clean up a blood stain as soon as it occurs. 
[title] Remove as much blood as possible before starting any cleaning. [step] If the blood is still wet, use a cloth or paper towel to soak it up.