Symptoms of femur or thighbone cancer include dull pain at the tumor site, fever, night sweats, stiffness, loss of balance, swelling and a mass that can be felt. In some cases, bone cancer may not cause any pain, but there may still be a mass or tumor present, states Memorial Sloan Kettering Cancer Center. There are two types of bone cancer, primary and secondary.
Femur cancer that originates in the thighbone is called primary bone cancer. When bone cancer spreads from other areas of the body to the thighbone or any other bone, it is referred to as secondary, or metastatic, bone cancer. Types of cancer that can spread to the bones include breast, prostate and kidney cancer. Metastatic bone cancer tends to be more common than primary bone cancer, states Memorial Sloan Kettering Cancer Center. Bone tumors that develop due to metastatic cancer tend to be at a more advanced stage.
In some cases, pain can be severe when a bone affected by a cancerous tumor suffers a minor injury that leads to a fracture, notes the American Academy of Orthopaedic Surgeons. Similarly, activity can exacerbate the pain in other cases. A patient with femur or bone cancer also may wake up at night due to the pain, states Healthline.