system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
Pathergy test is used for ?
assistant
The correct answer is  Ans. is 'b' i.e., Bechet's syndrome Criteria for diagnosis of Bechet's disease Recurrent oral ulcer for at least 3 times in 12 months. Plus any two of the followings :? Recurrent genital ulcer. Eye inflammation with loss of vision. Characterstic skin lesion (erythema nodosum). Positive pathergy test (skin prick test).