BD ISG criteria [8]. Main criteria and at least two secondary ones are required. Other diseases need to be excluded.

Table 3: BD ISG criteria [8]. Main criteria and at least two secondary ones are required. Other diseases need to be excluded.

Mandatory Criteria	Recurrent oral ulcerations	Minor aphthous, major aphthous or herpetiform ulceration observed by physician or patient, which recurred at least 3 times in one 12 month period
Secondary Criteria	Recurrent genital ulceration	Aphthous ulceration or scarring observed by physician or patient.
	Eye lesion	Anterior uveitis, posterior uveitis, or cells in vitreous on slit lamp examination or retinal vasculitis observed by ophthalmologist
	Skin lesion	Erythema nodosum observed by physician or patient, pseudo folliculiti s or papulopustular lesions, or acneiform nodules observed by physician in post-adolescent patients not on corticosteroid treatment
	Positive Pathergy test	Behcetine test read by physician 24-48 hours.