[Transient hip joint inflammation (coxitis fugax)]

The transient coxitis is the most common hip disease in the childhood. Etiology is unknown. Questioning the history you will often find an infection in the neck, nose, ear area. Clinical, radiological findings and serological testing are unspecific. In the arthrosonography normally you will find an effusion. The positive diagnosis of the transient coxitis is only possible by observing the mostly benign course of the disease. The treatment is bed rest and non weight bearing. The most important differential diagnosis is the Perthes disease. The principal aspects of the transient coxitis are described and discussed in literature and by own experience.