OR) you are a guy who got cut and stain your clothes. Anyhow, I'm going to tell you how to get rid of the FRESH blood stains from your clothes.
There are a few ways to get rid of blood stains. I'm going to tell you everything, every knowledge that I know.
If you get the blood stain, go to the bathroom ASAP and wash it with COLD WATER! DON'T put the bloodstain with WARM/HOT water. The protein will bond together when in contact with hot water. SO JUST USE COLD WATER and rinse the fabric till it become faded.
If you are at home and the first way does not remove the stain, then this will be the way for you. Use your favourite detergent and let the stain soak for 10-20 minutes and hand wash the stain till it become faded. This is the brand that I always go back and they perform great job for my clothes.
If the above 2 steps does not remove the stain, you can use a little help from your medicine cabinet called "Hydrogen peroxide". You can normally buy them at the counters at the pharmacy for the Hydrogen Peroxide 3% solution like this one.
Fourth wayI should say this is the weird way. If you have very fresh blood and if it is your blood, it is a quickest way is to put your saliva to bleach the blood. I recommend if you have a cut blood stain (a small one) to white or any colour shirt, use your saliva is the quickest and most effective way to bleach it immediately. If you are intimated by this idea then I suggest you do one of the above tricks.