What Is Tendon Damage?. A patient guide explaining what tendons do, how they become damaged, common symptoms, and how tendon problems are usually managed. Learn what to ask, how t
Tendons are strong fibrous bands that connect muscles to bones, transmitting the force needed for every movement. When tendons are overloaded, injured, or affected by long-term wear, the result is often described as tendon damage.
Each time a muscle contracts, the tendon transmits that force to the bone, allowing joints to move and absorb load. Tendons are designed for high tensile load, with collagen fibres arranged in parallel bundles for maximum strength.
They are also surprisingly elastic, storing and releasing energy with each step or throw.
However, tendons have a relatively limited blood supply, particularly in their mid-substance and at their attachment to bone.
This means:
Healing is slower than in well-vascularised tissues such as muscle
Repaired collagen is often less organised than original tissue
Chronic problems can develop quietly over months or years
Common Types of Tendon Damage
Tendinitis - acute inflammation, usually after a sudden overload
Tendinopathy or tendinosis - chronic structural change with little active inflammation
Partial tear - some fibres are disrupted but the tendon is still continuous
Complete rupture - the tendon is torn through, usually requiring urgent assessment
Enthesopathy - damage at the point where the tendon attaches to bone
Frequently Affected Sites
Achilles tendon at the heel, especially in runners and middle-aged adults
Rotator cuff tendons in the shoulder
Patellar tendon at the front of the knee (jumper's knee)
Common extensor and flexor tendons at the elbow (tennis and golfer's elbow)
Gluteal tendons at the side of the hip
Wrist and ankle tendons in repetitive occupations
Common Symptoms
Patients often describe:
Localised pain that worsens with activity and eases with rest
Stiffness, especially with the first steps in the morning
Swelling, thickening, or tenderness along the tendon
Reduced strength, grip, or push-off power
A creaking or crackling sensation (crepitus) in some cases
A sudden snap, sharp pain, and loss of function in complete ruptures
How It Is Diagnosed
Diagnosis usually involves:
A clinical examination of strength, range of motion, and specific tendon loading tests
Palpation along the tendon to localise the painful area
Imaging such as ultrasound, which can show thickening, tears, and increased blood flow
MRI for deeper tendons or when surgical planning is being considered
Review of activity, training history, occupational load, and medications
How It Is Managed
Standard management often includes:
Relative rest and load modification rather than complete inactivity
Progressive loading exercises such as isometric, eccentric, and heavy slow resistance
Pain relief and short-term anti-inflammatory care in the early phase
Footwear, equipment, and technique review
Injections such as corticosteroid or PRP in selected cases
Shockwave therapy for chronic tendinopathy
Surgery for complete ruptures or unresponsive severe cases
Stem cell therapy is being studied as a supportive option for selected chronic tendon problems that have not responded to first-line care.
Key Takeaway
Tendon damage ranges from short-lived inflammation to long-standing structural change. Most cases respond best to a structured plan that combines accurate diagnosis, progressive loading, and attention to training and lifestyle factors.
This article is for general informational and educational purposes only and is not a substitute for personalized medical advice. Always consult a qualified healthcare professional before considering stem cell therapy.