There are several options you can try. For natural stain removers you can find in your kitchen cabinets, give these a whirl:
Vinegar
White Vinegar is one of the most accessible blood cleaning items. It works best on fresh stains, as well as on mattress blood stains. Simply pour the vinegar on the blood stain and let it soak for 10 minutes. Blot with a damp cloth and repeat as necessary.
Salt
Salt is a strong dehydrating agent. Therefore, it can easily lift up the water and blood from fabric. Make a thick paste with salt and water and rub directly onto the stain. Allow it to dry and then scrape it off. Rinse with cold water.
Meat tenderizer
Meat tenderizer is designed to break down protein within the meat. When applied on blood stains, it breaks down the proteins in the blood, making it easier to get them out of fabrics. Make a paste with unseasoned meat tenderizer and cold water and soak the stain with this paste for 30 minutes. Rinse and launder in cold water. This technique works efficiently even on old, dried blood stains.
Baking soda
Baking soda is an excellent cleaner. Make a paste with baking soda and water and apply directly on to the stain. Let it sit for an hour, or longer, depending on the depth of the stain.