Hypertension is a degenerative disease often referred to as a silent killer because it can trigger serious complications such as stroke, heart failure, and kidney damage. Limited access to medical personnel causes delays in diagnosis and treatment. This study designs a web-based expert system to diagnose hypertension using the Naive Bayes method. The system was developed using PHP programming language and MySQL database. Testing was conducted on 6 datasets, resulting in a diagnostic accuracy of 80%. This system is expected to help the community recognize hypertension symptoms and provide preventive and initial treatment solutions.
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