Introduction: Osteochondroma is widely recognized asbenign bone tumor, protruding from underlying normal bone.The pes-anserinus is situated between the proximal medial tibia and the insertion point of the three tendons sartorius, gracilis, and semitendinosus. Torment in pes anserine area brings about pes anserine condition. Material and methods:A prospective study of “ Osteochondroma causing pes-anserinus syndrome”during a period of two years from 2020 to 2022 at a tertiary hospital. Result:The average age of our current case series was 17.3 years. In every instance, pain is the presenting symptom. All of them had a single osteochondroma, so clinical diagnosis of pes anserinus syndrome was made. On plain radiographs, the osteochondromas ranged in size from 2 to 4 cm, with an average of 3 cm. The typical location of all lesions was along the medial-posterior edge of the proximal tibia. In all instances, surgical resection relieved the symptoms.