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Forearm Tendonitis: Symptoms, Causes, Treatments, and More

Forearm tendonitis is a common condition affecting 1-3% of the general population, with a higher prevalence in racquet sports and jobs that require gripping and repetitive motions.

What is Forearm Tendonitis?

Forearm tendonitis is a condition characterized by inflammation, irritation, or damage to the tendons in the forearm. Tendons are strong bands of connective tissue that attach muscles to bones, and they play a crucial role in allowing movement and transmitting force from muscles to bones.


Forearm tendonitis can affect various tendons in the forearm area, leading to pain, tenderness, and discomfort. Two common types of forearm tendonitis are:

Tennis Elbow (Lateral Epicondylitis)

This type of tendonitis involves the tendons on the outer part of the elbow, where they attach to the lateral epicondyle (a bony prominence on the outer side of the elbow). It often occurs due to repetitive gripping, twisting, or lifting motions of the wrist and forearm. Despite its name, tennis elbow can affect people who don’t play tennis. Activities such as typing, using a mouse, or manual labor can also contribute to its development.

Golfer’s Elbow (Medial Epicondylitis)

This type of tendonitis involves the tendons on the inner part of the elbow, where they attach to the medial epicondyle (a bony prominence on the inner side of the elbow). Similar to tennis elbow, golfer’s elbow can develop from repetitive wrist flexion and gripping activities. It’s called “golfer’s elbow” due to its association with the motions involved in golf swings, but it can affect individuals who engage in other activities as well.


The symptoms of forearm tendonitis can vary depending on the specific type of Tendonitis and the severity of the condition. However, some common symptoms that individuals with forearm tendonitis may experience include:

  • Pain localized around the affected tendon at the elbow can range from mild to severe and may be described as a dull ache, soreness, or a sharp, stabbing pan
  • Tenderness to the touch at the affected tendon at the elbow
  • Discomfort with movement during activities that involve using the forearm muscles, such as gripping, lifting, twisting, or repetitive motion
  • Stiffness in the forearm, especially upon waking up in the morning or after periods of inactivity
  • Weakness and loss of grip strength in the affected hand or wrist due to pain and inflammation around the tendon
  • Swelling around the affected tendon
  • Warmth and redness due to increased blood flow and inflammation around the affected tendon

Risk Factors

Several risk factors can contribute to the development of forearm tendonitis. These factors increase the likelihood of experiencing irritation, inflammation, and damage to the tendons in the forearm. Some common risk factors include:

  • Repetitive Movements: engaging in repetitive activities that involve the same forearm motions over an extended period can strain the tendons and lead to tendonitis. Jobs or activities that require frequent gripping, twisting, lifting, or repetitive hand and wrist movements increase the risk.
  • Incorrect technique: poor technique during sports, exercise, or work-related activities can place excessive stress on the tendons. Improper form and technique can lead to repetitive strain and increased risk of tendonitis.
  • Age: tendon structure and function can change with age, making older individuals more susceptible to tendon injuries, including tendonitis.
  • Occupation: certain occupations, such as construction work, carpentry, assembly line work, and computer-related tasks, involve repetitive or forceful forearm movements, increasing the risk of tendonitis (1).
  • Sports and hobbies: participation in sports that involve repetitive forearm motions such as tennis, golf, or weightlifting, or activities that require frequent gripping, such as rock climbing, can increase the risk of tendonitis (2).
  • Inadequate warm-up: failing to properly warm up before engaging in physical activities can lead to increased stress on the tendons and a higher risk of injury.
  • Muscle imbalances: muscle imbalances in the forearm, hand, and wrist can alter the distribution of forces during movement, potentially leading to excessive strain on certain tendons.
  • Improper equipment: using tools, instruments, or equipment that are not ergonomically designed can contribute to poor hand and wrist posture and increase the risk of tendonitis.
  • Genetics: some individuals may have a genetic predisposition to tendon injuries and conditions like tendonitis (3).
  • Systemic conditions: certain systemic conditions, such as rheumatoid arthritis, diabetes, and thyroid disorders, can weaken tendons and increase the risk of tendonitis (4).
  • Lifestyle factors: factors like obesity and smoking can affect blood circulation, tissue health, and overall tendon function, potentially increasing the risk of tendonitis.

Summary: Risk factors for elbow tendonitis involve repetitive motions in work or sport, improper ergonomics, genetics, lifestyle factors, and systemic conditions.


Diagnosing forearm tendonitis involves a comprehensive approach that includes gathering information about your symptoms, conducting a physical examination, and potentially using imaging studies. Healthcare professionals, such as doctors or orthopedic specialists, use these steps to accurately diagnose the condition and rule out other potential causes.

Your medical history plays a crucial role in the diagnostic process. Your healthcare provider will ask you about the specific location of your pain, when it started, any activities that exacerbate the pain, and any previous occurrences of similar issues.

During the physical examination, the healthcare provider will carefully examine your forearm and elbow. They will use touch and pressure to identify areas of tenderness, swelling, warmth, and signs of inflammation. Additionally, they will assess your range of motion and ask you to perform certain movements to evaluate the function of the forearm tendons.

To confirm the diagnosis and pinpoint the affected tendons, your healthcare provider might perform specific tests that reproduce or worsen your symptoms. These tests, such as the “Cozen’s test” for tennis elbow or the “Mill’s test” for golfer’s elbow, help determine the exact type of forearm tendonitis.

In some cases, imaging studies may be recommended. X-rays can rule out bone-related issues, while ultrasound or an MRI can provide detailed images of soft tissues, like tendons, showing signs of inflammation or damage.

Summary: Diagnosing elbow tendonitis involves a combination of medical history, physical examination, provocative tests, and imaging such as x-ray and MRI.

Treatment Options

Treatment options for forearm tendonitis aim to reduce pain and inflammation, and promote healing of the affected tendons. The specific treatment plan will depend on the severity of the condition, the type of tendonitis, and individual factors. The recommended treatment usually involves a combination of the following:

  • Rest and activity modification: giving the affected tendons time to rest and recover is essential. Avoid or modify activities that exacerbate the symptoms. Temporary changes in work or sports routines may be necessary.
  • Pain relief medications: over-the-counter nonsteroidal anti-inflammatory drugs (NSAIDs), such as ibuprofen or naproxen, can help reduce pain and inflammation.
  • Physical therapy: working with a therapist to design a program of exercises and stretches to strengthen the forearm muscles, improve flexibility, and promote proper biomechanics can help treat forearm tendonitis. They may also use techniques like manual therapy, ultrasound, or electrical stimulation to aid in healing.
  • Ergonomic modifications: making adjustments to your work or activity setup can reduce strain on the affected tendons. This might include changing your desk setup, using ergonomic tools, or modifying your sports technique.
  • Bracing or splinting: wearing a brace or splint can provide support to the affected tendons and promote proper healing. It can also help reduce strain during activities.
  • Corticosteroid injections: in some cases, a healthcare provider may recommend a corticosteroid injection to reduce inflammation and provide temporary pain relief. This is often used when conservative treatments haven’t been effective (5).
  • Surgery: surgery is generally considered a last resort and is reserved for cases where conservative treatments have failed. Surgical options vary based on the specific tendon affected and the severity of the condition.

Summary: Treatment options for elbow tendonitis involve a combination of activity modification, physical therapy, pain medication and bracing. If conservative treatment does not work steroid injections might be recommended and surgery is used as a last resort.