1. If fresh, may be removed by washing in cold water. If hard and dry steep for a few hours in cold water, to which add a pinch of baking soda. Washing and bleaching will finish the process.
NOTE: Never put blood stains in hot water.
2. Pre-soak in cold or warm water at least 30 minutes. If stain remains, soak in lukewarm ammonia water (3 Tbs. per Gallon of water). Rinse. If stain remains, work in detergent and wash, using bleach safe for fabric.