What it is
Pain arising from a tendon or its attachment — a tendinopathy or tendinitis affecting load transmission between muscle and bone.
Pain arising from a tendon or its attachment — a tendinopathy or tendinitis affecting load transmission between muscle and bone.

At a glance
What it is
Pain arising from a tendon or its attachment — a tendinopathy or tendinitis affecting load transmission between muscle and bone.
Commonly experienced as
Evidence context
Research-supportedSee the evidence snapshotContext
Tendon pain (tendinopathy) describes pain arising from a tendon — the fibrous connective tissue structure transmitting force between muscle and bone. Tendinopathy is the preferred term, encompassing degenerative and reactive changes in tendon structure without necessarily active inflammation (despite the historical term 'tendinitis'). Common tendinopathies include Achilles tendinopathy (posterior heel and lower calf pain aggravated by activity), patellar tendinopathy (anterior knee pain at the patellar tendon origin), lateral epicondylitis (elbow tendinopathy of the common extensor origin), and rotator cuff tendinopathy (shoulder pain with specific movements). Eccentric loading exercises — where the muscle-tendon unit lengthens under load — have the strongest evidence for tendinopathy rehabilitation across sites.
The Evidence
What research says about tendon pain, how it is managed, and when to seek professional assessment.
Tendon pain is well-studied with clear rehabilitation evidence
Tendinopathy research is robust, with eccentric loading and shockwave therapy among the best-supported interventions. Early professional assessment helps distinguish tendinopathy from more serious structural injury.
Seek prompt assessment if you experience sudden loss of mobility, inability to bear weight, joint swelling with redness and heat, or symptoms following a fall or trauma. Progressive weakness or loss of function also warrants professional evaluation. These may indicate a structural injury beyond tendinopathy.
Eccentric loading — where the muscle-tendon unit lengthens under load — is well-supported across common tendinopathy sites including Achilles, patellar, and elbow tendons. Isometric loading shows moderate evidence for reducing acute pain. Shockwave therapy has strong evidence for chronic tendinopathy. Most evidence focuses on specific sites, so findings do not always transfer universally.
The term tendinopathy is preferred over tendinitis because active inflammation is often absent. Changes in tendon structure — reactive or degenerative — affect how the tendon transmits load between muscle and bone. Common sites include the Achilles, patellar tendon, elbow extensor origin, and rotator cuff. Understanding the site and load history helps guide appropriate management.
Structured loading programmes, shockwave therapy, and activity modification are commonly used approaches. Complementary options such as massage and acupuncture are used alongside rehabilitation by some individuals, though evidence varies. A physiotherapist or sports medicine clinician can assess your specific tendon, load history, and function to guide an appropriate plan.
A physiotherapist, sports medicine clinician, or musculoskeletal specialist can assess tendon integrity, rule out structural injury, and design a loading programme suited to your stage of tendinopathy. Self-managed loading without guidance can sometimes worsen symptoms. If pain is persistent, worsening, or limits daily function, professional assessment is recommended.
Most high-quality tendinopathy research focuses on the Achilles and patellar tendons. Evidence for other sites is less extensive. Long-term outcomes for many interventions remain under-studied. Complementary approaches used alongside rehabilitation have limited independent evidence. Individual response to loading programmes varies, and optimal protocols are still being refined.
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