Role of Clinical Examination and Investigation in Differential Diagnosis

Accurate diagnosis is the cornerstone of effective treatment in both Ayurveda and modern medicine. In Ayurveda, diagnosis is primarily based on the principles of Trividha Pariksha, Ashtavidha Pariksha, etc & Nidana Panchaka which help the physician to understand the nature of disease, involved Doshas, Dhatus, and the patient's Prakriti. Clinical examination provides direct observation of symptoms and patient characteristics, while modern investigations help to confirm the diagnosis and exclusion of diseases with similar manifestations. Clinical examination refers to a systematic evaluation through history taking & assessing the patient by inspection, palpation, percussion, auscultation while investigation includes laboratory tests, Diagnostic imaging that provides objective data to confirm diagnosis. Differential diagnosis is essential because many disorders present with overlapping symptoms. Thus, clinical examination and investigations are complementary components of differential diagnosis. Their combined application enables clinicians to identify diseases at an early stage, understand the pathophysiological basis of symptoms, and provide patient-centered treatment. This article reflects the significance of clinical examination and investigations in the differential diagnosis of diseases.