Patient presents with left thumb pain.  Onset of pain is described as (acute, subacute, chronic) and began (duration) ago.  The patient localizes the pain to the (base, MCP joint, IP joint, thenar eminence, dorsum, volar aspect) of the left thumb and characterizes the pain as (sharp, dull, aching, throbbing, radiating).  Pain is exacerbated by (activities such as gripping, pinching, lifting, texting, typing, etc.) and alleviated by (rest, ice, heat, medication).  The patient denies (or reports) any history of trauma, injury, or prior left thumb pain.  Physical examination reveals (tenderness to palpation, swelling, erythema, ecchymosis, limited range of motion, crepitus, instability) in the left thumb.  Neurovascular examination is intact with normal sensation and capillary refill.  Differential diagnosis includes De Quervain's tenosynovitis, osteoarthritis, rheumatoid arthritis, ligament sprain or tear, scaphoid fracture, and trigger thumb.  Assessment: Left thumb pain, likely (most probable diagnosis).  Plan:  (Conservative management with rest, ice, compression, elevation, NSAIDs, splinting, occupational therapy referral) or (Further investigation with X-ray, MRI, ultrasound) or (Referral to hand specialist, orthopedic surgeon).  Patient education provided regarding activity modification, pain management strategies, and follow-up care.  Return to clinic scheduled in (duration).