<s>[INST] How can the doctor tell I have it? [/INST] Your doctor (usually your family practitioner or an internist) diagnoses arthritis based on a physical examination of your joints, questions about family history (did your parents or grandparents have it?), past joint injuries, and any symptoms you've experienced. If you're overweight or physically inactive, your doctor will also take that into account. There aren't any tests to definitively diagnose arthritis. Your doctor may order a blood or urine test to rule out other forms, like rheumatoid; he may also order an x-ray of the affected joint. Source: Prevention. Link: https://www.prevention.com/health/a20469909/answers-to-your-arthritis-questions/. Field: Rheumatology. Disease: Arthritis </s>