Children's Hospital Colorado
Hip Preservation Program

Transient Synovitis in Kids

Kids aren’t just mini adults. In fact, they’re incredibly different. That’s why they need incredibly different care.

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What is transient synovitis?

Transient synovitis is an inflammation in the hip joint that causes pain, limp and sometimes refusal to bear weight. This occurs in pre-pubescent children and is the most common cause of hip pain. It occurs when a viral infection, such as an upper respiratory infection, moves to and settles in the hip joint.

Transient means lasting for only a short time. This condition is temporary and in normal cases clears itself in 7 to 10 days. Because the condition can be alarming, you should see a doctor if you witness the signs and symptoms of transient synovitis in your child.

What causes transient synovitis?

The cause of transient synovitis is unknown. Experts are unclear as to why the synovial membrane that surrounds the hip becomes inflamed.

Who gets transient synovitis?

Transient synovitis is most common in children 2-8 years of age. Boys are affected two to four times as often as girls. It most commonly occurs in children following a viral infection such as an upper respiratory virus.

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Get to know our pediatric experts.

Rachael Mahan, PA-C

Rachael Mahan, PA-C

Physician Assistant

Hannah Martin, PA

Hannah Martin, PA

Physician Assistant

Cailin Brazeau, PA-C

Cailin Brazeau, PA-C

Physician Assistant

Sarah Sibbel, MD

Sarah Sibbel, MD

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