Tennis Elbow - Causes, Treatment & When to See a Doctor

What is Tennis Elbow?

Tennis elbow, also known as lateral epicondylitis, is a condition characterized by pain and inflammation in the tendons that connect the forearm muscles to the outer part of the elbow. Despite its name, this injury is not exclusive to tennis players—it can affect anyone who engages in repetitive arm motions. The primary cause is overuse or strain on the tendons responsible for extensor movements, such as gripping or lifting objects.

According to the Mayo Clinic, tennis elbow occurs when repetitive stress leads to small tears in the tendons, causing pain and tenderness around the lateral epicondyle (the bony bump on the outside of the elbow). While often associated with sports, everyday activities like typing, painting, or using tools can trigger this condition.

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Common Causes

Tennis elbow develops due to factors that overwork or stress the forearm tendons. Below are 10 common causes, many of which are unrelated to sports:

• Repetitive Motion: Activities involving repeated wrist or arm motions, such as typing, racket sports, or assembling furniture.
• Incorrect Technique: Poor form during sports or manual labor can place excessive stress on the tendons.
• Age-Related Wear: Tendons weaken with age, making older adults more susceptible.
• Overuse: Engaging in new or intensified physical activities without proper conditioning.
• Occupational Hazards: Jobs requiring repetitive gripping, such as plumbing or carpentry.
• Improper Equipment: Using sports gear (e.g., a tennis racket) that doesn’t fit properly.
• Weak Forearm Muscles: Underdeveloped muscles fail to support proper tendon stress distribution.
• Posture Issues: Slouched sitting or rounded shoulders can alter arm mechanics.
• Lifting Heavy Objects: Frequent lifting without proper form strains the tendons.
• Garden Work: Prolonged use of tools like pruners or shovels.

The National Institutes of Health (NIH) emphasizes that any activity causing repetitive strain on the elbow’s extensor muscles can lead to tennis elbow.

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Associated Symptoms

While pain is the hallmark symptom, tennis elbow often comes with other signs that vary in severity:

• Pain on the Outside of the Elbow: Burning or aching near the lateral epicondyle, worsening with activity.
• Tenderness: Pain when pressing on the outer elbow or gripping objects.
• Weakness in Grip: Difficulty holding a pen, lifting items, or performing tasks requiring fine motor skills.
• Stiffness: Reduced elbow movement, especially in the morning or after inactivity.
• Swelling: Mild inflammation or warmth around the affected area.

The Cleveland Clinic notes that symptoms typically develop gradually and may linger for weeks if untreated.

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When to See a Doctor

Most cases of tennis elbow resolve with home care, but certain signs warrant prompt medical attention:

• Persistent Pain: Discomfort lasting longer than 2 weeks despite rest or OTC treatments.
• Numbness or Tingling: Indicates possible nerve involvement (e.g., radial nerve irritation).
• Limited Mobility: Difficulty extending the wrist or grasping objects.
• Redness or Swelling: Signs of infection or severe inflammation.

According to the Centers for Disease Control and Prevention (CDC), seek care if pain interrupts sleep or daily activities. Early intervention can prevent chronic issues.

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Diagnosis

Doctors diagnose tennis elbow through a combination of physical exams and patient history:

Physical Examination

• Tenderness Test: The doctor presses on the lateral epicondyle to assess pain sensitivity.
• Motion Tests: Asking you to extend your wrist or grip a object to trigger pain.
• Elbow Stress Test: Applying gentle resistance to evaluate tenderness during movement.

Imaging (if needed)

• MRI or Ultrasound: To rule out other injuries, such as a ligament tear or tendon rupture.
• X-Ray: Uncommon but used to check for arthritis or bone spurs.

The Harvard Health Publishing states that imaging is rarely necessary, as diagnosis is typically clinical.

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Treatment Options

Treatment focuses on reducing inflammation, relieving pain, and addressing underlying causes. Options include:

Medical Treatments

• Physical Therapy: Exercises to strengthen forearm muscles and improve flexibility.
• NSAIDs: Pain relievers like ibuprofen to reduce inflammation.
• Corticosteroid Injections: Short-term relief for severe pain (caution: overuse can weaken tendons).
• Bracing: A counterforce brace worn on the forearm to reduce tendon strain.

Home Remedies

• Rest: Avoid activities that worsen pain.
• Ice: Apply ice packs for 15–20 minutes several times a day.
• Stretching: Gently stretch forearm muscles to improve mobility.
• Shockwave Therapy: A non-invasive treatment using sound waves (available at clinics).

The National Institute of Health recommends starting with conservative measures and consulting a specialist if symptoms persist.

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Prevention Tips

Preventing tennis elbow involves reducing strain on the tendons:

• Warm Up: Perform gentle stretches before activities involving arm movements.
• Use Proper Technique: Learn correct methods for sports, lifting, or using tools.
• Ergonomic Tools: Invest in cushioned grips or tools designed to minimize strain.
• Take Breaks: Rest your arm during repetitive tasks.
• Strengthen Muscles: Incorporate forearm exercises into your routine.
• Maintain Posture: Avoid slouching to keep arm alignment neutral.

As noted by the Mayo Clinic, consistent prevention strategies can reduce the risk of recurrence by up to 50%.

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Emergency Warning Signs

While rare, certain symptoms demand immediate medical care. These are highlighted in red:

These signs may indicate nerve damage, infection, or a more severe tendon tear—conditions requiring urgent treatment to avoid long-term disability.

For further guidance, consult a healthcare provider. Sources like the World Health Organization (WHO) stress the importance of timely care for musculoskeletal injuries.