Secondary bone cancer symptoms include bone pain, fractures, leg and abdomen numbness, and loss of appetite and nausea, according to University of Rochester Medical Center. Secondary bone cancer occurs when cancer cells spread from other parts of the body to the bones.
Bone pain is the most common symptom of secondary bone cancer, notes University of Rochester Medical Center. The pain is often worse at night, and eventually it may become severe.
Because bones weaken when secondary bone cancer develops, fractures are common, states University of Rochester Medical Center. Fractures most commonly occur in the arms, legs and back.
If the secondary bone cancer affects the spine, compression of the spinal cord may occur, leading to back pain, weak and numb legs, numbness in the abdomen, and difficulty with urination or bowel movements, according to University of Rochester Medical Center. Without treatment, paralysis may occur.
As secondary bone cancer develops, calcium from the bones releases into the bloodstream, sometimes causing hypercalcemia, a condition in which excessive amounts of calcium accumulate in the blood, explains University of Rochester Medical Center. The patient may lose his appetite, feel nauseous or thirsty, or become constipated. He may also feel tired or confused. Without treatment, he may lapse into a coma.