Clinical Significance of a Positive Dermatographism Test
Disease description:
Itchy skin—after visiting the hospital for laboratory testing, my doctor performed a skin scratch test, which yielded a positive result. What does a positive skin scratch test indicate?
Doctor's answer (2)
Dr. Yan Min
A positive skin scratch test—also known as dermatographism or artificial urticaria—is a relatively common dermatological condition and falls under the category of chronic urticaria. Its primary clinical manifestations include recurrent episodes of pruritus (itching) and wheal formation (hives) on the skin. This condition is associated with individual constitutional factors. In severe cases, antihistamines are effective for symptom control. Some patients may experience spontaneous remission over time. In daily life, patients should avoid consuming spicy or irritating foods.
