Metastatic bone cancer doesn't always cause symptoms, but when they do occur, patients may suffer from persistent bone pain, according to Mayo Clinic. As the cancer spreads, individuals may struggle with weakened limbs and susceptibility to painful bone fractures.
Metastatic bone cancer develops when tumors from other organs, such as the liver, breast or lung, spread to nearby bone and gradually ruin its structural integrity, Cleveland Clinic states. Bone pain is usually most noticeable during physical activities, such as walking or heavy lifting. Cancer research also suggests patients experience heightened pain for a few days before suffering from disease-related bone fractures, making it necessary for individuals to notify physicians of any sudden changes in pain level or sensitivity.