Dermatographia is also known as skin writing. It is a rare, auto immune skin condition which affects people. Individuals impacted by this have hypersensitive skin and any minor injury can cause ridges, red lines which appear on the affected area. It symptoms are itching, swelling, inflammation etc. This disease is not a serious disease and symptoms do not last for a long period of time. Through scratching and rubbing may cause discomfort and irritation. Dermatographia can be caused by stress and emotion. In most of the cases symptoms disappear in thirty minutes. Proper care must be taken in its initial stage.