Elbow pain is one of those problems that tends to start small and gradually become impossible to ignore. For active adults in Boise and the Treasure Valley — whether you work with your hands, play recreational sports, or spend long hours at a keyboard — elbow discomfort can interfere with a surprising range of daily activities. Two of the most commonly confused conditions are elbow tendonitis and tennis elbow. They share some characteristics, but understanding the difference can help clarify what kind of care makes sense.
What Is Elbow Tendonitis?
Tendonitis refers broadly to inflammation of a tendon — the fibrous tissue that connects muscle to bone. In the elbow, tendonitis can develop in any of the tendons surrounding the joint, though it most commonly affects the tendons on the outer or inner side of the elbow. Inflammation typically results from repetitive stress or overuse, though it can also follow a specific injury or awkward movement that puts sudden strain on the tendon.
The hallmark of tendonitis is localized pain that worsens with specific movements. Depending on which tendon is involved, you may notice discomfort when gripping objects, rotating your forearm, or extending and flexing the wrist. Swelling and tenderness directly over the affected tendon are also common.
What Is Tennis Elbow?
Tennis elbow — known medically as lateral epicondylitis — is a specific type of tendonitis affecting the tendons that attach the forearm muscles to the lateral epicondyle, a bony bump on the outer side of the elbow. Despite the name, the majority of people who develop tennis elbow have never played tennis. The condition is extremely common among anyone who performs repetitive gripping, twisting, or lifting motions — plumbers, carpenters, cooks, painters, office workers, and yes, tennis players all appear in the mix.
The characteristic symptom is pain on the outer side of the elbow, often radiating down the forearm, that is aggravated by activities like shaking hands, turning a doorknob, or lifting even lightweight objects with the palm facing down. According to the American Academy of Orthopaedic Surgeons, tennis elbow affects two to three percent of the population and is most common in adults between 30 and 50.
How Are They Different?
In practical terms, “tennis elbow” refers to a specific condition — lateral epicondylitis — while “elbow tendonitis” is a broader term. Tennis elbow is a form of elbow tendonitis, but not all elbow tendonitis is tennis elbow. There is also golfer’s elbow (medial epicondylitis), which affects the tendons on the inner side of the elbow and presents with pain closer to the inside of the joint.
The distinction matters for treatment because different tendons respond to somewhat different rehabilitation approaches. Identifying which tendon is involved — and how severely — is part of what an orthopedic evaluation establishes.
Conservative Treatment: What Generally Works
The good news for most people with tennis elbow or elbow tendonitis is that the condition responds well to conservative management when addressed early. Rest and activity modification are typically the first steps — reducing or temporarily stopping the activities that provoke symptoms gives the tendon an opportunity to begin recovering.
Physical therapy to strengthen the forearm muscles and improve flexibility plays a central role in most treatment plans. Bracing or counterforce straps can reduce the load on the affected tendon during daily activities. Anti-inflammatory approaches, including ice and over-the-counter medications, help manage acute discomfort. Mayo Clinic notes that the majority of cases resolve with conservative care over a period of weeks to months.
When to See a Specialist
If elbow pain has persisted for more than a few weeks despite rest, is severe enough to limit your daily activities, or keeps coming back after periods of improvement, an orthopedic evaluation is a reasonable next step. A specialist can confirm the diagnosis, rule out other causes of elbow pain — including referred pain from the neck or biceps tendon issues — and outline a structured treatment plan tailored to your situation.
In cases where conservative management has not provided adequate relief after several months, additional options including corticosteroid injections or, in some cases, minimally invasive procedures may be considered.
Elbow Care at Idaho Shoulder to Hand
At Idaho Shoulder to Hand, we see elbow conditions ranging from early-stage tendonitis to more complex cases that have not responded to initial treatment. Our approach starts with an accurate diagnosis — because elbow pain that looks like tendonitis sometimes has a different underlying cause — followed by a clear explanation of your options.
Learn more about our elbow care services or schedule an evaluation at our Boise clinic.

