During the last years, spondilodiskitis due to Kingella kingae has been a new target of interest, since it is the second agent that causes non tuberculous espondilodiskitis in children, after Staphylococcus aureus. Its clinical presentation is very inespecific, sometimes with fever, abdominal or lumbar disconfort, nocturnal pain, altered walking and sedestation. Images, culture methods and PCR (polymerase chain reaction) can be helpful for diagnosis, although in an important percent of the cases, etiology cannot be determined. Although there are no established guidelines for treatment, before the suspicion, empiric antibiotic treatment should be started for good prognosis. We describe a case of a 3 year old boy, who had this disease and then a review about spondilodiskitis in childhood and microbiological aspects of Kingella kingae.