Prevalence of Intestinal Parasites among Patients with Chronic Urticaria in Northern Iran.

Background: Chronic urticaria (CU) has a range of clinical demonstrations and causes. Parasitic infections are mentioned as one of the main causes of the CU.

Objectives: The aim of this study was to investigate the prevalence of intestinal parasites in patients with CU (with duration time of more than 6 weeks) compared healthy subjects.