Ouch, paper cut. Or a nosebleed or scraped knees or whatever life may throw at you. Blood stains on your clothes are quite usual, but they can be tricky to get rid off. No worries though, we got you covered.
If possible, immediately rinse the stain with cold water. Don't use hot water; hot water will set the stain.
If the stain is persistent, follow the rinse with an extended soak of the stain in cold salt water and then carefully rub the stain with some liquid detergent. Then, if the garment is washable, wash the garment as usual according to the care label, if it is not washable; use a damp towel to get rid of the detergent from the garment.
If the stain is a really stubborn one, for example is the blood has already dried, there is another home remedy you can try out. Just mix some baking soda, alternatively cornstarch or talcum powder, with cold water to make a paste. Allow the paste to sit on the stain for at least 30 minutes, up to overnight, and then wash the garment according to the care label instructions.
Alternatively, but only for lightcolored clothes since this method can cause color loss in darker garments, you can use half a lemon and some salt to get rid of the stain. Squeeze some lemon juice over the stain and then sprinkle some table salt on top. Leave for about 10 minutes, and then use a damp cloth to draw out what’s remaining of the stain and the lemon and salt mixture.