Dermatographia and Scratch Scars
At first glance, this may seem like a tattoo or a brand on someone’s arm, but don’t be fooled. It is actually an example of a rare condition called Dermatographia. Individuals with Dermatographia have highly sensitive skin that reacts to the smallest scratches, resulting in raised, red lines that can persist for a long time and can be challenging to erase.
Although it may seem like a cool party trick, living with this condition can be frustrating due to the constant and sometimes severe reactions to minor injuries.