Introduction: Unicameral bone cysts (UBCs) are benign cavities in immature bones, affecting 3% of bone tumors. They can weaken surrounding bones and increase fracture risk. Management varies, especially in children and adolescents. Several hypotheses exist, but cause remains elusive. Aims: The study investigates the outcomes of operative management of a pathological fracture caused by a Unicameral Bone Cyst in the proximal femur, along with the discovery of the same tumor. Methodology: A 27-year-old male patient with minor injury was diagnosed with a comminuted pathological fracture in the left intertrochanteric femur, requiring bilateral surgery to prevent future fractures. Results: The patient\u27s suture lines healed and suture removal was performed, and after 1.5 months of partial weight bearing, they were allowed full weight bearing walking by 3 months. Discussion: A 27-year-old patient with a comminuted femur fracture was found to have a bilateral unicameral bone cyst, a rare occurrence in adults, potentially contributing to structural weakness. Conclusion: This case report discusses the clinical manifestations of bilateral unicameral bone cysts, emphasizing the importance of thorough examination, MRI scans, and prophylactic surgery for accurate diagnosis
