The common reasons for the growth of a lump on the bone are as follows: first, due to degeneration and proliferation, commonly in the elderly, mainly due to bone degeneration and osteophytes, it is easy to feel the proliferated bone on the bone surface, thus appearing as a lump; second, visible in the bone suffered an injury or chronic strain and long-term inflammatory stimulation, thus appearing as an over-repair of bone, which can also produce a bone Thirdly, soft tissue masses appear on the surface of the bone, which are often mistaken for bone masses when they are hard; fourthly, bone masses appear as new organisms, such as bone tumors, including benign tumors and malignant tumors, and the symptom gap is still relatively large, which is also good to identify. It is recommended that patients go to the hospital for a detailed consultation to clarify the diagnosis.