Share some ways to wash your pants with blood

It is not easy to wash the cloth with blood stains for a long time. Here are some ways you can try it.

• Soak in cold water for a while, then wash directly with soap or detergent. Rinse with clean water.
•  Cold water soaked, then rubbed with detergent and rinsed with water. This method is easy to remove blood stains. 
•  First use ginger scrub, then dip in cold water rub, can leave no trace.
•  Pour white vinegar in bloodstained place for 10-15 minutes, then rinse twice with clean water to remove blood stains.