One-liner#
Adult/geriatric approach to finger pain/swelling: identify tendon injuries that need urgent splinting/referral, distinguish infection vs crystal vs inflammatory arthritis, and prevent stiffness with the right early management.
Quick nav#
Red flags / send to ED#
- Open fracture, gross deformity, or severe crush injury
- Neurovascular compromise: pale/cool digit, delayed cap refill, progressive numbness
- Suspected flexor tenosynovitis: rapidly worsening swelling/pain, pain with passive extension, finger held flexed, tenderness along flexor tendon sheath
- Suspected septic arthritis: hot, swollen joint with severe pain on any motion and systemic symptoms
- Tendon rupture with loss of function (needs timely splinting/referral): inability to actively extend DIP (mallet), inability to flex DIP (jersey), inability to extend PIP (central slip)
Key history#
- Trauma details: jammed finger, forced flexion/extension, “pop,” laceration/bite
- Location: DIP vs PIP vs MCP; single joint vs whole finger swelling
- Onset: sudden swelling (trauma/crystal/infection) vs gradual (OA/inflammatory)
- Mechanical symptoms: locking/catching (trigger finger), instability, inability to straighten/bend
- Infection clues: nail fold pain, puncture, bite, spreading redness, fever
- PMH: diabetes/immunosuppression; gout/psoriasis/RA
Focused exam#
- Inspect resting posture (mallet droop, boutonniere/swan-neck), swelling, erythema, wounds
- ROM: active and passive at each joint; pain with passive ROM (joint concern)
- Tendon testing:
- DIP extension (mallet)
- DIP flexion (FDP/jersey)
- PIP extension (central slip)
- Joint stability: collateral ligaments (varus/valgus at PIP/MCP)
- Paronychia/felon: nail fold tenderness, fluctuance/pulp space tenderness
- Neurovascular: cap refill, sensation
Differential (quick pattern recognition)#
Common/likely (outpatient)#
| Diagnosis | Keywords patients use | Key clues | Focused exam clues | Initial next step |
|---|
| Sprain/contusion (“jammed finger”) | “Jammed,” swollen | Minor trauma; pain but retains function | Tender PIP/MCP; stable | Buddy tape/splint briefly, early ROM |
| OA (DIP/PIP) | “Achy,” “knobby,” stiff | Gradual; brief AM stiffness | Bony enlargement; limited ROM | Topical NSAID, hand therapy, adaptive tools |
| Trigger finger | “Locks,” “clicks” | Often at MCP; morning worse | A1 pulley tenderness; triggering | Splint/activity modification; consider injection/referral |
| Paronychia | “Pain by nail,” swelling | Nail fold infection, hangnail | Tender erythematous nail fold | Warm soaks; drainage if abscess; antibiotics per severity |
| Acute gout/pseudogout (finger) | “Sudden,” very swollen joint | Rapid onset; prior gout | Hot swollen joint | Consider aspiration if uncertain; anti-inflammatory therapy if appropriate |
Can’t-miss / urgent#
| Diagnosis | Keywords patients use | Key clues | Focused exam clues | Initial next step |
|---|
| Mallet finger (extensor tendon injury) | “Tip won’t straighten” | Forced flexion injury | Inability to actively extend DIP | Continuous DIP extension splint + hand referral |
| Jersey finger (FDP avulsion) | “Can’t bend fingertip” | Forced extension of flexed finger | Inability to flex DIP | Urgent hand referral |
| Central slip injury | “Can’t straighten middle joint” | PIP injury | Weak/absent PIP extension | Splint and early hand referral |
| Flexor tenosynovitis | “Finger is swollen and hurts to move” | Rapid progression; puncture possible | Kanavel signs | ED now; surgical evaluation |
| Septic arthritis | “Hot,” severe on any motion | Fever/risk factors; single joint | Pain with passive ROM; effusion | ED now; aspiration/labs/IV antibiotics |
Workup#
- X-ray for trauma, deformity, suspected fracture/dislocation, and tendon injury patterns (look for avulsion fractures).
- Aspiration/labs when infection vs crystal arthritis is unclear and results change management.
- Consider tetanus status and bite management when relevant.
Initial management#
- Protect function with the correct splinting strategy (and avoid prolonged immobilization unless indicated).
- Buddy tape and early ROM for stable sprains to prevent stiffness.
- Analgesics as appropriate—see medication tables below.
- Escalate urgently for suspected deep infection or tendon rupture patterns.
Analgesic options for finger pain#
| Drug | Dose | Contraindications | Monitoring | Cost | Notes |
|---|
| Acetaminophen | 650–1000 mg q6–8h; max 3 g/day | Severe hepatic impairment | LFTs if prolonged use | $ | Safe first-line |
| Ibuprofen | 400–600 mg q6–8h with food; max 2400 mg/day | CKD, GI bleed, HF, anticoagulation | Cr, BP if prolonged | $ | Effective for inflammatory component |
| Naproxen | 250–500 mg q12h; max 1000 mg/day | Same as ibuprofen | Same as ibuprofen | $ | Convenient BID dosing |
| Diclofenac gel 1% | Apply small amount to affected finger QID | Avoid on broken skin | Minimal systemic absorption | $$ | Good for localized OA pain |
Paronychia treatment#
| Severity | Treatment | Notes |
|---|
| Early/mild (no abscess) | Warm soaks TID–QID × 3–5 days | May resolve without antibiotics |
| Moderate (cellulitis, no abscess) | Warm soaks + oral antibiotics × 5–7 days | Cover staph/strep: cephalexin 500 mg QID or TMP-SMX if MRSA concern |
| Abscess present | Incision and drainage + antibiotics | Lift nail fold or partial nail removal if needed |
Gout flare treatment (finger joint)#
| Drug | Dose | Contraindications | Monitoring | Cost | Notes |
|---|
| Naproxen | 500 mg BID × 5–7 days | CKD, GI bleed, HF | Cr if CKD risk | $ | First-line if no NSAID contraindications |
| Colchicine | 1.2 mg, then 0.6 mg 1 hour later (day 1); then 0.6 mg daily–BID | CKD (reduce dose if eGFR <30); CYP3A4 inhibitors | GI symptoms; Cr | $$ | Most effective within 24 hours |
| Prednisone | 30–40 mg daily × 5 days | Uncontrolled DM, active infection | Blood glucose in diabetics | $ | Use when NSAIDs/colchicine contraindicated |
Management by diagnosis#
Jammed finger/sprain (stable)#
- Education: swelling can persist for weeks; early motion prevents stiffness.
- Treatment: buddy tape or short splinting, then frequent gentle ROM; ice/elevation early.
- Follow-up: 1–2 weeks if function not improving.
Mallet finger#
- Education: healing requires continuous DIP extension; brief flexion can reset progress.
- Treatment: DIP extension splint continuously; arrange hand follow-up.
- Follow-up: within 1 week for splint check and referral pathway.
Paronychia#
- Education: early soaks can help; abscess needs drainage.
- Treatment: warm soaks; drainage if fluctuance; antibiotics per severity/risk.
- Follow-up: 1–2 days if worsening; otherwise 1 week.
Follow-up#
- Reassess in 1–2 weeks for injuries needing splint checks or uncertain diagnosis.
- Urgent return for rapidly spreading redness, fever, increasing pain with movement, numbness/coolness, or loss of function.
Patient instructions#
- Keep the finger moving gently unless you were told to keep it splinted continuously.
- Ice/elevate for swelling in the first 48 hours after injury.
- Seek urgent care for rapidly worsening swelling/redness, fever, severe pain with finger movement, or a pale/cool finger.
Smartphrase snippets (optional)#
Finger pain/swelling consistent with ____. Exam: ____. Plan: splint/buddy tape, wound care as needed, analgesic options, and return precautions.
Related pages#
Complaint pages#
Problem pages#
- Osteoarthritis — DIP/PIP OA (Heberden/Bouchard nodes) management
- Gout — finger joint gout management
Coding/billing notes (optional)#
- Document tendon function testing (DIP ext/flex, PIP extension), neurovascular status, and any wounds/bites or infection screening.