Boots WebMD Partners in Health
Return To Boots

Health A-Z

Causes of tendonitis

NHS Choices Medical Reference

NHS Choices Logo

Tendonitis is caused by overuse of a tendon or injury. It may be the result of:

  • a sports-related injury, or
  • a repetitive strain injury (repeated overuse of muscles), which can occur in the workplace.

A tear in the tendon because of injury may cause inflammation (swelling).

Medical conditions

For reasons that are not known, tendonitis tends to occur more commonly in people with diabetes than in the general population.

Also, tenosynovitis (inflammation of the sheath surrounding the tendon) is sometimes associated with rheumatoid arthritis.

For more information on these conditions, see Useful links.

Medical Review: April 06, 2009

Stay informed

Sign up for BootsWebMD's free newsletters.
Sign Up Now!

Popular Slideshows & Tools on Boots WebMD

woman looking at pregnancy test
Early pregnancy symptoms
donut on plate
The truth about sugar addiction
womans toned abdomen
A workout for a toned tummy
79x79_less_is_more_with_exercise.jpg
Which exercises are safe?
hand extinguishing cigarette
13 best tips to stop smoking
Immune-boosting foods
The role of diet
79x79_not_good_for_you.jpg
18 secrets men want you to know
boy looking at broccoli
Quick tips for feeding picky eaters
hamburger and fries
A guide for beginners
salmon dinner
A diet to boost your mood & energy
polka dot dress on hangar
Lose weight without dieting