An opened wound has blood coming out of the skin.
A closed wound is when the tissue is broken, but the skin is not which will cause a bruise.
How is bleeding caused?
A closed wound is caused by a little force which will cause a bruise.
An opened wound is caused when a strong physical force cuts your skin and the blood pours out.
First Aid Procedures
Minor Open Wounds - If the wound is open and blood is pouring out, then wash it up, put an antibiotic ointment and cover it with a bandage.
Major Opened Wounds - If the wound is majorly opened, then cover it up with anything that is close like a shirt or jacket to slow down the blood and call 911
Signs and or Symptoms
Symptoms are when the person says they were hurt by something