Explain Everything on Instagram: "This video shows a subungual hematoma, a common but fascinating example of how the human body responds to injury. It happens when blood gets trapped under the nail after trauma - like slamming a finger in a door or hitting it hard - causing the dark purple or black discoloration you see here. What’s remarkable is that the nail itself is made of dead keratin, but the tissue underneath is very much alive and rich in blood vessels and nerves. As the injury heals, t

Blood under the nail (subungal hematoma) is really painful because of the pressure... A few years ago I came home from being on call and seeing baby in hopsital and was trying to quietly shut my car door to avoid waking up kids...slammed my finger in the car. The throbbing pain was so bad from the pressure under the nail I could hardly sleep so now I keep one of these at home. The high temp fine tip cautery goes straight through the nail without any pain (this brave boy said he was just upset ab

What to Do About Blood Under Your Nail

Subdural hematoma: Video, Causes, & Meaning | Osmosis

Epidural hematoma: Video, Causes, & Meaning | Osmosis