Tennis Elbow vs Golfer’s Elbow: Differences, Symptoms & Treatments

Elbow pain is one of the most frustrating musculoskeletal complaints we treat in sports medicine. It can turn simple, everyday actions such as gripping a coffee cup, turning a doorknob, lifting a grocery bag, or shaking someone's hand into sharp, disabling discomfort.

Two of the most frequent culprits behind chronic elbow pain are lateral epicondylitis (commonly known as Tennis Elbow) and medial epicondylitis (known as Golfer's Elbow). Despite their sports-specific names, fewer than 10% of patients with these conditions actually play competitive tennis or golf. 1 They frequently affect desk workers, manual artisans, gym enthusiasts, and individuals performing repetitive wrist and forearm motions.

While both conditions are overuse tendinopathies, they affect completely different tendon groups, produce distinct pain patterns, and require targeted rehabilitation protocols. In this guide, we break down the anatomical differences, hallmark symptoms, diagnostic tests, and modern evidence-based treatment ladders for both conditions.

Anatomy: What Is the Difference?

To understand why your elbow hurts, you have to look at the muscles of your forearm and where they anchor to the humerus (upper arm bone).

        ┌──────────────────────────────────────────────┐
        │             DISTAL HUMERUS (ELBOW)           │
        └──────────────────────┬───────────────────────┘
                               │
            ┌──────────────────┴──────────────────┐
            ▼                                     ▼
   LATERAL EPICONDYLE                    MEDIAL EPICONDYLE
   (Outer Elbow)                         (Inner Elbow)
   ─────────────────                     ─────────────────
   • Extensor Carpi Radialis             • Pronator Teres
     Brevis (ECRB)                       • Flexor Carpi Radialis (FCR)
   • Action: Wrist Extension &           • Action: Wrist Flexion &
     Radial Deviation                      Forearm Pronation
   • Condition: TENNIS ELBOW             • Condition: GOLFER'S ELBOW

1. Tennis Elbow (Lateral Epicondylitis)

Tennis elbow involves the outer (lateral) aspect of your elbow. The primary tendon affected is the extensor carpi radialis brevis (ECRB), which anchors the muscles responsible for cocking your wrist backwards (extension) and stabilising the wrist during gripping tasks. 2

When you grip an object firmly, the ECRB contracts to keep the wrist extended so your finger flexors have optimal mechanical leverage. Repetitive strain creates micro-tearing at the microscopic enthesis (bone-tendon junction), leading to degenerative collagen remodelling.

2. Golfer's Elbow (Medial Epicondylitis)

Golfer's elbow involves the inner (medial) aspect of your elbow. The common flexor tendon, predominantly the pronator teres and the flexor carpi radialis (FCR), anchors to the medial epicondyle.  3

These muscles pull your wrist downward (flexion) and rotate your forearm inward so your palm faces down (pronation). Repeated resisted wrist flexion or forceful inward twisting, such as the trailing arm during a golf swing, forehand topspin in tennis, throwing a ball, or heavy gym pull-ups, overloads this medial attachment.

Pathology: It Is Tendinosis, Not Pure Inflammation

For decades, both conditions were called "epicondylitis," implying an acute inflammatory reaction ending in "-itis." However, foundational histopathological research by Nirschl and Kraushaar demonstrated that chronic epicondylar pain is characterised by angiofibroblastic tendinosis: 2, 4

• An absence of acute inflammatory cells (neutrophils or macrophages) in long-standing cases
• Disorganised, hypercellular collagen matrix with loss of parallel fibre orientation
• Neovascularisation (ingrowth of fragile, abnormal microvessels accompanied by unmyelinated pain-sensing nerve fibres)
• Focal collagen degeneration and micro-tears resulting from a failed healing response

Understanding that this is a degenerative tendinopathy rather than simple inflammation is essential because it explains why simply taking anti-inflammatory painkillers or resting rarely cures the condition permanently. Healing requires stimulating cellular tendon remodelling and collagen synthesis.

Comparison: Tennis Elbow vs Golfer's Elbow

Classic Symptoms and Self-Tests

Symptoms of Tennis Elbow

• Burning or aching pain localised over the bony prominence on the outer elbow.
• Pain radiating down the back of the forearm toward the middle and index fingers.
• Marked weakness in grip strength (e.g., dropping cups or struggling to hold tools)
• Cozen's Test (Clinical Sign): Make a fist, pronate your forearm (palm down), and try to extend your wrist upward against resistance. Severe pain over the outer elbow indicates a positive test. 6
• Mill's Test: With your elbow fully straight, your wrist flexed downward, and your forearm turned inward, stretch the extensor tendon. Sharp pain indicates lateral epicondyle pathology.

Symptoms of Golfer's Elbow

• Tenderness directly over the bony knob on the inside of the elbow
• Pain that shoots down the palm side of your forearm during heavy gripping or wrist flexing
• Elbow stiffness or discomfort when making a tight fist
• Occasional tingling or numbness in your little and ring fingers if the adjacent ulnar nerve is inflamed (in up to 20% of cases) 5
• Golfer's Elbow Test (Reverse Cozen's): Extend your elbow, turn your palm upward (supination), and try to flex your wrist upward against firm resistance. Sharp pain along the inner elbow confirms medial epicondylitis.

What Else Could It Be? (Differential Diagnoses)

Not all elbow pain stems from epicondylitis. In our clinical evaluation at our elbow conditions clinic, we rule out alternative pathologies that mimic these conditions:

1. Radial Tunnel Syndrome: Compression of the posterior interosseous nerve (PIN). The pain is located about 3–4 cm distal to the lateral epicondyle in the supinator muscle belly and is often mistaken for recalcitrant tennis elbow. 7
2. Cervical Radiculopathy (Pinched Nerve in Neck): Herniated discs at C5-C6 or C6-C7 can radiate pain down the arm to the lateral or medial elbow. A focused neck examination and Spurling's test differentiate spinal origins.
3. Ulnar Collateral Ligament (UCL) Sprain: In throwing athletes, inner elbow pain often results from attenuation or tearing of the anterior bundle of the UCL rather than pure golfer's elbow. 8
4. Intra-articular Loose Bodies or Osteochondritis Dissecans (OCD): Clicking, locking, or inability to fully straighten the arm suggests joint cartilage pathology that may require arthroscopic investigation.

Evidence-Based Treatment Protocol

The vast majority (over 90%) of patients with tennis or golfer's elbow recover successfully with structured conservative treatment when applied systematically. 1, 9

  ┌────────────────────────────────────────────────────────┐
  │  PHASE 1: ACUTE LOAD MANAGEMENT & SYMPTOM SETTLING     │
  │  • Activity modification (avoid provocative gripping)  │
  │  • Counterforce bbrace/epicondylitisclasp            │
  │  • Night wrist splint in neutral position              │
  └───────────────────────────┬────────────────────────────┘
                              │
                              ▼
  ┌────────────────────────────────────────────────────────┐
  │  PHASE 2: RESTORATIVE TENDON REHABILITATION (WEEKS 3-12)│
  │  • Heavy-slow eccentric loading (Tyler Twist / FlexBar)│
  │  • Forearm pronator/supinator conditioning             │
  │  • Scapular and kinetic chain stabilisation           │
  └───────────────────────────┬────────────────────────────┘
                              │ (If symptoms persist > 3-6 months)
                              ▼
  ┌────────────────────────────────────────────────────────┐
  │  PHASE 3: INTERVENTIONAL OR BIOLOGICAL THERAPY         │
  │  • Extracorporeal Shockwave Therapy (ESWT)             │
  │  • Ultrasound-guided Autologous Platelet-Rich Plasma   │
  └───────────────────────────┬────────────────────────────┘
                              │ (Refractory > 6-12 months)
                              ▼
  ┌────────────────────────────────────────────────────────┐
  │  PHASE 4: MINIMALLY INVASIVE OR ARTHROSCOPIC SURGERY   │
  │  • AArthroscopic/opendebridement of degenerate tendon│
  │  • Radiofrequency microtenotomy                        │
  └────────────────────────────────────────────────────────┘

1. Load Management (Not Complete Rest)

Total immobilisation in a sling causes tendon disuse, muscle wasting, and collagen stiffness. Instead, practice relative rest:

• Modify your desk setup: use an ergonomic vertical mouse to avoid prolonged forearm pronation.
• Avoid palming heavy weights with extended wrists in the gym; switch to neutral-grip handles.
• Use a counterforce elbow strap placed 2–3 cm below the painful epicondyle. This strap dissipates tensile forces across the forearm belly before they reach the bony anchor. 10

2. Eccentric Tendon Loading: The Gold Standard

Tendons respond to mechanical load through a cellular process called mechanotransduction. Controlled loading stimulates tenocytes to synthesise new type I collagen fibres and realign damaged tissue.  9

• The Tyler Twist for Tennis Elbow: Using a flexible rubber resistance bar (FlexBar), twist the bar into tension with the healthy arm, then slowly release it using eccentric wrist extension on the affected arm. Randomised controlled trials have shown remarkable pain reduction and strength gains using this exercise. 11
• Reverse Tyler Twist for Golfer's Elbow: The reverse manoeuvre isolates eccentric wrist flexion and pronator deceleration.

3. The Truth About Corticosteroid Injections

While a cortisone injection into the tendon sheath often yields dramatic pain relief in the first 2 to 6 weeks, landmark clinical trials published in The Lancet and BMJ show that cortisone injections lead to significantly higher recurrence rates and poorer 1-year outcomes than structured physical therapy or "wait-and-see" approaches. 12 Cortisone can induce tenocyte cytotoxicity and weaken tendon architecture. We reserve corticosteroid injections strictly for severe, intractable inflammatory flares that prevent participation in physical therapy.

4. Regenerative Medicine (Platelet-Rich Plasma - PRP)

For patients with recalcitrant chronic tendinosis lasting more than 3 months, ultrasound-guided autologous Platelet-Rich Plasma (PRP) has emerged as an evidence-backed biological intervention. PRP releases high concentrations of PDGF, TGF-beta, and VEGF directly into the degenerative zone, driving vascular endothelial cell proliferation and collagen synthesis. High-level clinical trials demonstrate that leukocyte-rich PRP delivers superior long-term functional recovery and durable pain reduction compared to corticosteroid injections. 13

5. When Is Surgery Necessary?

Surgical intervention is indicated in fewer than 5–8% of patients whose symptoms remain debilitating despite 6 to 12 months of disciplined conservative care. 14

• Minimally Invasive Arthroscopic Debridement: Using miniature arthroscopic portals, the surgeon visualises the joint, debrides the degenerative ECRB tendon surface, and inspects for intra-articular cartilage damage or synovial plica. Learn more about arthroscopic surgery techniques.
• Open Tendon Repair: Involves a small 2–3 cm incision to excise the degenerative tissue (Nirschl procedure), decorticate the lateral epicondyle to promote bone marrow bleeding, and repair the healthy tendon margin. For golfer's elbow, the medial epicondyle debridement is performed with careful neurolysis and protection of the adjacent ulnar nerve. 15

Learn more about surgical procedures at our tendon repair specialist clinic.

Prevention: Keeping Your Elbows Injury-Free

To prevent recurrence once your elbow heals:

1. Strengthen the Entire Kinetic Chain: Elbow injuries often occur because the shoulder, rotator cuff, or periscapular muscles are weak. When the shoulder fatigues during throwing, racquet sports, or gym work, the forearm muscles take on excessive compensatory load. Incorporate comprehensive sports injury prevention drills.
2. Review Your Equipment: Racquet players should adjust grip size (a grip that is too small forces excessive forearm squeezing) and decrease string tension.
3. Warm Up Actively: Perform dynamic forearm and wrist mobility drills before sports or repetitive work sessions rather than static stretching.

Key Takeaways

• Tennis elbow affects the outer elbow (wrist extensors; ECRB tendon). Golfer's elbow affects the inner elbow (wrist flexors; pronator teres).
• Both conditions represent degenerative tendinosis (collagen breakdown) rather than acute inflammation.
• Most cases stem from daily occupational tasks, desk work, or manual labour, not competitive sports.
• Corticosteroid injections offer temporary relief but carry high recurrence rates. Eccentric strengthening is the foundation of lasting recovery.
• Surgery is reserved for patients who fail 6–12 months of structured non-operative treatment.

If persistent elbow pain is restricting your daily routine or athletic training, schedule an assessment with our sports medicine team to confirm your diagnosis and build an individualised recovery plan.

Frequently Asked Questions

Can I still work out in the gym if I have tennis or golfer's elbow?

Yes, but you must modify your exercises to prevent aggravating tensile stress. Switch from straight barbells to neutral-grip dumbbells or trap bars. Avoid heavy deadlifts, wrist curls, or pull-ups without supportive straps during the reactive tendon phase.

How long does tennis or golfer's elbow take to heal completely?

Because tendons have lower blood supply than muscles, complete biological remodelling generally requires 6 to 12 weeks of progressive eccentric loading. Severe, chronic tendinopathies may require up to 6 months of structured rehabilitation. 9

Does wearing an elbow sleeve help?

A standard compressive sleeve provides warmth and mild proprioceptive feedback. However, a specialised counterforce forearm strap (worn 2 fingers below the elbow joint) is significantly more effective because it mechanically changes the angle of pull and dampens load on the epicondyle. 10

References

1. Shiri R, et al. "Prevalence and determinants of lateral and medial epicondylitis: a population study." American Journal of Epidemiology. 2006;164(11):1065–1074. https://doi.org/10.1093/aje/kwj325
2. Kraushaar BS, Nirschl RP. "Tendinosis of the elbow (tennis elbow). Clinical features and findings of histological, immunohistochemical, and electron microscopy studies." Journal of Bone and Joint Surgery (Am). 1999;81(2):259–278. https://doi.org/10.2106/00004623-199902000-00014
3. Amin NH, et al. "Medial epicondylitis: evaluation and management." Journal of the American Academy of Orthopaedic Surgeons. 2015;23(6):348–355. https://doi.org/10.5435/JAAOS-D-14-00145
4. Nirschl RP. "Elbow tendinosis/tennis elbow." Clinics in Sports Medicine. 1992;11(4):851–870. https://doi.org/10.1016/S0278-5919(20)30488-8
5. Kurvers H, Verhaar J. "The results of operative treatment of medial epicondylitis." Journal of Bone and Joint Surgery (Br). 1995;77(5):725–728. https://doi.org/10.1302/0301-620X.77B5.7559698
6. Cozen L. "Tennis elbow." Western Journal of Medicine. 1973;119(6):63–64.
7. Moradi A, et al. "Radial tunnel syndrome: diagnostic and treatment dilemmas." Journal of Hand and Microsurgery. 2015;7(2):308–313. https://doi.org/10.1007/s12593-015-0186-x
8. Cain EL, et al. "Outcome of ulnar collateral ligament reconstruction of the elbow in 1,281 athletes: Results in baseball players." American Journal of Sports Medicine. 2010;38(12):2426–2434. https://doi.org/10.1177/0363546510378100
9. Cook JL, Purdam CR. "Is tendon pathology a continuum? A pathology model to explain the clinical presentation of load-induced tendinopathy." British Journal of Sports Medicine. 2009;43(6):409–416. https://doi.org/10.1136/bjsm.2008.051193
10. Jafarian D, et al. "The effect of counterforce forearm orthoses on wrist extensor muscle fatigue in patients with lateral epicondylalgia." Prosthetics and Orthotics International. 2009;33(1):44–54. https://doi.org/10.1080/03093640802489863
11. Tyler TF, et al. "Addition of an eccentric overload training program using a novel device to standard physical therapy for tennis elbow." Journal of Shoulder and Elbow Surgery. 2010;19(6):917–922. https://doi.org/10.1016/j.jse.2010.04.041
12. Coombes BK, et al. "Efficacy and safety of corticosteroid injections and other injections for management of tendinopathy: a systematic review of randomised controlled trials." The Lancet. 2010;376(9754):1751–1767. https://doi.org/10.1016/S0140-6736(10)61160-9
13. Peerbooms JC, et al. "Positive effect of an autologous platelet concentrate in lateral epicondylitis in a double-blind randomised controlled trial: platelet-rich plasma versus corticosteroid injection with a 1-year follow-up." American Journal of Sports Medicine. 2010;38(2):255–262. https://doi.org/10.1177/0363546509355445
14. Baker CL, et al. "Arthroscopic classification and treatment of lateral epicondylitis: two-year review." Journal of Shoulder and Elbow Surgery. 2000;9(6):475–482. https://doi.org/10.1067/mse.2000.109383
15. Vangsness CT, Jobe FW. "Surgical treatment of medial epicondylitis. Results in 35 elbows." Journal of Bone and Joint Surgery (Br). 1991;73(3):409–411. https://doi.org/10.1302/0301-620X.73B3.2033271