Abstract: Reiter’s syndrome is a special type of reactive arthritis characterized by the triad of arthritis, urethritis and conjunctivitis. According to the different types of precursor infections, they can be divided into sexually transmitted and dysenteric types. Children with this disease are rare, and clinicians are not well aware of it and are prone to misdiagnosis and missed diagnosis. This paper retrospectively analyzed the pathogenic characteristics, clinical manifestations, treatment and outcome of Reiter's syndrome in a 20-month-old girl infected with bacillary dysentery to improve the understanding of the disease.

Key words: arthritis, reactive, child, case reports, Reiter's syndrome