The diagnosis of osteoarthritis typically begins with an Orthopedic and Traumatology specialist taking a detailed patient history and performing a thorough physical examination of the affected joints. Based on this initial assessment, further investigations may be required. X-rays are commonly used to visualize joint damage and confirm the diagnosis. Additionally, various blood tests may be ordered to evaluate inflammation or rule out other conditions. These tests can include a complete blood count, erythrocyte sedimentation rate (ESR), C-reactive protein (CRP), antistreptolysin O (ASO), and rheumatoid factor (RF).