What autoimmune diseases affect tendons and ligaments
What autoimmune diseases affect tendons and ligaments Autoimmune diseases are conditions where the immune system mistakenly attacks the body’s own tissues, leading to inflammation, pain, and tissue damage. While many autoimmune disorders are known for targeting organs like the skin, joints, or internal organs, some specifically affect tendons and ligaments, which are crucial for movement and stability. Understanding these diseases can help in early diagnosis and management, preserving mobility and quality of life.
One of the most common autoimmune diseases affecting tendons is Rheumatoid Arthritis (RA). Though primarily known for attacking synovial joints, RA can also involve the tendons surrounding these joints, leading to tenosynovitis—an inflammation of the tendon sheath. This manifests as swelling, pain, and limited movement, often affecting the wrists, fingers, and ankles. Persistent inflammation can weaken tendons over time, increasing the risk of rupture.
Another significant condition is Systemic Lupus Erythematosus (SLE). Lupus can cause inflammation in various tissues, including tendons and ligaments. Patients often experience non-erosive tenosynovitis, which results in joint and tendon pain without permanent damage. The disease’s systemic nature means it can affect multiple organs and tissues simultaneously, sometimes leading to chronic pain and functional impairment in tendons.
Scleroderma, or systemic sclerosis, is characterized by fibrosis or hardening of the skin and connective tissues. It can involve the tendons and ligaments, causing them to become thickened and less flexible. This leads to contractures and limited range of motion, particularly in the fingers and hands. The fibrosis process can also compromise the structural integrity of tendons, making them more susceptible to injury.
An often less recognized autoimmune disorder impacting tendons is Psoriatic Arthritis. This disease occurs in some individuals with psoriasis and involves inflammation of the joints and entheses—points where tendons and ligaments insert into bone. Enthesitis leads to pain, swelli

ng, and tenderness at these attachment sites, which can result in damage or destruction of the tendons and ligaments if untreated.
Another condition to consider is Polymyositis and Dermatomyositis, which primarily affect muscles but can be associated with tendinous inflammation. Patients might experience muscle weakness along with tendinopathy—degeneration and inflammation of tendons—leading to pain and impaired movement.
In addition to these, various vasculitic autoimmune diseases such as Granulomatosis with Polyangiitis can involve the blood vessels supplying tendons and ligaments. This can cause ischemia and subsequent tissue damage, further complicating the clinical picture.
The common thread among these diseases is that they involve immune-mediated inflammation, which damages the structural components of tendons and ligaments. Early diagnosis and appropriate management, including immunosuppressive therapies, physical therapy, and sometimes surgical intervention, are essential in preventing irreversible damage and maintaining functional mobility.
Understanding the autoimmune diseases that target tendons and ligaments underscores the importance of medical vigilance. If persistent tendon pain, swelling, or stiffness occurs—especially alongside other systemic symptoms—prompt consultation with a healthcare professional can lead to timely diagnosis and effective treatment.









