Published: 29 Mar 2025

DDxHub is a medical diagnostic tool that helps analyze symptoms, test results, and potential differential diagnoses.
To research "Joint Pain + Swelling + Rheumatoid Factor (RF)" using DDxHub, follow these steps:

Step 1: Input Symptoms and Test Results
Enter Joint Pain and Swelling as primary symptoms.

Include Rheumatoid Factor (RF) positive as a lab finding.

Consider adding any other symptoms, such as morning stiffness, fatigue, or fever.

Step 2: Analyze Differential Diagnoses
DDxHub will likely suggest conditions that match the given symptoms. Some key possibilities include:

Rheumatoid Arthritis (RA) - Chronic autoimmune disease with symmetrical joint involvement.

Lupus (SLE) - Can present with joint pain, swelling, and positive RF.

Sjogren’s Syndrome - Often associated with RA and positive RF.

Viral Arthritis - Some viral infections can cause joint pain and RF positivity.

Sarcoidosis - May cause joint symptoms with RF positivity.

Cryoglobulinemia - Often linked to Hepatitis C, causes joint pain and RF positivity.

Step 3: Refine Search with Additional Findings
Anti-CCP Test: If positive, strengthens the suspicion of RA.

ESR/CRP: Elevated levels suggest inflammation.

ANA Test: If positive, consider Lupus or another autoimmune disorder.

Imaging (X-ray, MRI, Ultrasound): To assess joint damage.

Step 4: Review the Output and Compare with Clinical Data
Cross-check DDxHub suggestions with clinical guidelines.

Consider consulting a rheumatologist for expert evaluation.

Would you like help interpreting specific test results or symptoms? Use DDxHub AI-driven differential diagnosis online system.