Blood stains are notorious for creating permanent stains. On an absorbent surface, such as your leather, blood stains soak into the fibre in addition to sitting on the surface. Improper removal supplies and techniques often cause a blood stain to become permanent. You can draw a blood stain out of your leather and remove its discolouration from the surface by treating the protein in the blood stain as well as the stain itself.
Lay paper towels over the blood stain on your leather surface to absorb moisture from the stain. Remove and discard the towels as they absorb blood and replace with clean paper towels. Continue to soak up blood until there's no further transfer to the paper towels.
Cover the stain with meat tenderizer. Mound the meat tenderizer over the stain and allow it to sit for 20 minutes. The meat tenderizer breaks down the proteins in the blood stain for easier stain removal.
Vacuum the meat tenderizer off your leather surface.
Combine a couple capfuls of saddle soap with one gallon warm water. Wet a clean cloth with the mild soap solution and wring out excess moisture. Blot the site of the blood stain from the outside of the stain in toward the centre.
Dip an old toothbrush in the soap suds and use it to remove blood from grooves or crevices in the leather surface. Dampen a clean cloth with water and wipe the leather to rinse off the soap. Dry your leather surface with a clean, dry cloth.
Use diluted hydrogen peroxide to wash blood stains off light or white leather surfaces. Always wring out cleaning cloths and sponges so you're cleaning your leather surface with the least amount of moisture possible.