Toxic synovitis is an irritation and swelling of the lining of the hip joint. The condition causes pain and tenderness that may move down to the thigh and knee; it sometimes makes a person limp.
Toxic synovitis is the most common cause of hip pain in children. It occurs most often in boys ages 4 to 10 years. It commonly follows a mild injury or an illness with low-grade fever, such as tonsillitis or an ear infection.
This condition usually resolves on its own, but treatment may be given for pain and inflammation.
Toxic synovitis is also called transient synovitis.
Current as of: May 27, 2016
Author: Healthwise Staff
Medical Review: William H. Blahd, Jr., MD, FACEP - Emergency Medicine & H. Michael O'Connor, MD - Emergency Medicine
To learn more about Healthwise, visit Healthwise.org.
© 1995-2017 Healthwise, Incorporated. Healthwise, Healthwise for every health decision, and the Healthwise logo are trademarks of Healthwise, Incorporated.
Donations to UW Health are managed by the University of Wisconsin Foundation, a publicly supported charitable organization under 501(c)(3) of the Internal Revenue Code.