Osteosarcoma is a type of bone cancer that most commonly affects teenagers and young adults. It usually develops in the long bones, such as the arms and legs, but can also occur in other bones. Symptoms may include swelling, pain, and fractures. Early diagnosis and treatment are crucial for improving outcomes. Treatment for osteosarcoma often involves a combination of surgery, chemotherapy, and sometimes radiation therapy. Doctors may remove the tumor and surrounding tissue to prevent the cancer from spreading. Advances in medical research continue to improve the prognosis for those diagnosed with this challenging disease.