A cross-sectional, observational study surveying the clinical, laboratory, and therapeutic characteristics of Behçet's disease patients in a tertiary care center in Upper Egypt

This research is designed to comprehensively characterize Behçet's disease (BD), an inflammatory multisystem disorder with variable prevalence and presentation based on geography and ethnicity. Data will be collected from patients attending the Rheumatology, Rehabilitation and Physical Medicine department, Assiut University Hospitals, capturing demographic profiles, disease manifestations, laboratory results, and therapeutic history. The study uses validated criteria (ISG and rICBD) for BD diagnosis, focusing on thorough examination across musculoskeletal, dermatological, ocular, vascular, gastrointestinal, and neurological domains. Disease activity and severity will be assessed using standardized forms (Behcet's disease current activity form 2006, BODI). Laboratory analysis includes CBC, acute phase reactants, and organ function tests. Data management incorporates advanced statistical techniques using SPSS, aiming for rigorous analysis to inform future BD management in the region .

Inclusion Criteria:

• Patients who fulfil the international study group criteria (ISG) which require the presence of recurrent oral ulceration plus at least two of the following: recurrent genital ulcers, eye lesions (uveitis or retinal vasculitis), skin lesions, or a positive pathergy test (12). and the revised International Criteria of BD (rICBD)

Exclusion Criteria:

• Patients with unconfirmed diagnosis of BD.

Eligible participants are adults and adolescents diagnosed using international criteria (ISG and rICBD), with recurrent oral ulceration and at least two additional manifestations (genital ulcers, eye lesions, skin lesions, positive pathergy test). Patients with unconfirmed BD are excluded. Given BD's variable age and gender distribution, the population will reflect regional epidemiological trends, including a probable male predominance consistent with Arab and Mediterranean cohorts. Comprehensive sociodemographic data, disease duration, age at onset, family/personal history, and clinical presentation are documented. All patients are monitored through a structured two-year inclusion, maximizing sample heterogeneity and capturing real-world data from both inpatient and outpatient clinical pathways .