An evaluation of Behcet's syndrome begins with a medical history and physical examination.

Physical findings in those with Behcet's syndrome include:

• Aphthous ulcers in the mouth
• Genital ulcers
• Iritis
• Joint swelling
• Neurologic abnormalities
• Raised red rashes
• Stomatitis
• Thrombophlebitis

There are no specific tests for the diagnosis of Behcet's. The combination of laboratory tests, physical findings, patient history, and tissue biopsy is used to make the diagnosis of Behcet's.

Tests used for the evaluation for Behcet's syndrome may include:

• Erythrocyte sedimentation rate (ESR)
• Serum gammaglobulin level
• Cryoglobulin level