When you lose blood due to small wound, the immune system will be working very hard to close the wound and/or fight all types of foreign substance (most likely living organisms such as bacteria, viruses…)
When you lose blood due to big wound, the blood pressure will drop (which is dangerous), the immune system will still be kicking in to protect you from systemic infection, but the wound healing process won’t be able to rescue you as quick as it needs to. Time to call paramedics!
Comments