Osteoid osteoma is a rare benignbonetumorthataccounts for 10% Of all benign bone tumors and 2 to 3% of bone tumors of the child, it affects all ages groups, with a predilection for the second decade; the lower limb is most often interested. Our work reports the experience of the pediatric traumatology service CHU Mohammed VI about 13 cases of osteoid osteoma between 2011 and 2017, based on a retrospective descriptive study. The average age of our patients is 10 years with 3 boys and 10 girls. The location of the tumor was at the level of the lower limb in 11 cases and 2 cases in the upper limb. The diagnosis was evoked in all cases with nocturnal pain that gives way to aspirin intake and radiologically confirmed by the characteristic appearance of the nidus. Surgical resection in 13 cases including 08 cases with radiological identification, and 2 cases with isotopic identification.The recurrence was noted in 02 cases with isotopic identification.