The 60-year-old gradually weakened over seven years to the point where he could no longer walk, not realizing he had broken the necks of his femur and 11 ribs. The cause of his condition was a tumor hidden in his leg, which the doctors did not identify at first. Pathologic fractures (breaks caused by bone weakening by cancer) are a red flag for bone cancer because they indicate that the tumor has mechanically weakened the bone system. Gradual loss of mobility and repeated fractures with no apparent cause are warning signs that should prompt further investigation. The case illustrates how bone cancer can be long overlooked when symptoms are attributed to other conditions. Early diagnosis and identification of symptoms such as persistent bone pain and unexplained fractures are key to early detection of the disease.