Transient synovitis involves temporary inflammation in the synovial membrane of the hip. It is a common cause of hip pain in children aged 3-10 years. It may be triggered by a viral upper respiratory tract infection.
Presentation
Symptoms of transient synovitis often occur within a few weeks of a viral illness. They present with acute or more gradual onset of:
- Limp
- Avoiding walking
- Groin or hip pain
Children with transient synovitis should be otherwise well. They should have normal paediatric observations and no signs of systemic illness. Children with transient synovitis typically do not have a fever. Septic arthritis needs to be urgently considered in febrile children with joint pain.
Management
A working diagnosis of transient synovitis can be made based on the clinical presentation. The most essential step in management is to exclude other significant pathology, such as septic arthritis and fractures.
Simple analgesia can be used to manage symptoms (e.g., paracetamol and ibuprofen).
Follow-up should be arranged to ensure symptoms improve at 48-72 hours and resolve by 1 week. Full recovery should occur within 2 weeks.
Safetynet advice should be given to seek urgent medical attention (attend A&E) if they develop a fever, symptoms worsen, or they become systemically unwell.
Last updated July 2026
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