It causes you to develop raised marks (wheals) or a reaction similar to hives when you scratch your skin.

Can hives look like scratch marks. This reaction looks like hives or welts. The size of the hives can range from. The cause of dermatographia is unknown, but it may be related to an infection,.

Web hives are distinguishable by their telltale appearance, says dr. Hives are usually caused by an allergic reaction to something that you have encountered or swallowed. Web when someone with dermatographia lightly scratches their skin, the scratches turn red and form raised welts that look like hives.

Expect them to feel itchy and to look red and raised. Hives can be triggered by many situations and substances, including certain foods and medications. Another possibility is that you have a skin condition or rash that looks like a scratch.

Web a heat rash can cause raised, red bumps on your skin that look similar to hives. These marks tend to go away in less than 30 minutes. Dermatographia is a condition in which lightly scratching your skin causes raised, inflamed lines or welts.

These appear as raised bumps, redness, itching, and even heat to the touch. The condition is also known as dermatographism and skin writing. Doctors refer to this type of skin condition, which accounts for nearly 20 percent of hives as physical urticaria.

Web leventkonuk/getty images what causes hives? They can affect people of any age on any part of the body. Web dermatographia is a common, benign (not harmful) skin condition.