How to Remove Blood Stains from a Mattress. Blood contains lots of proteins, and this makes stains particularly difficult to remove. To get blood stains out of a mattress, you must first remove as much of the excess blood as possible,.
All menstruating women need to know how to get blood stains out! After you use the cornstarch/salt/water blend (I didn't have peroxide) then just mist water onto the mattress and soak it up with paper towels. Worked like magic!