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Our 24/7 cancer helpline provides information and answers for people dealing with cancer. We can connect you with trained cancer information specialists who will answer questions about a cancer diagnosis and provide guidance and a compassionate ear.
Our highly trained specialists are available 24/7 via phone and on weekdays can assist through online chat. We connect patients, caregivers, and family members with essential services and resources at every step of their cancer journey. Ask us how you can get involved and support the fight against cancer. Some of the topics we can assist with include:
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It's more common for cancer to spread to the bone (bone metastasis) than it is for cancer to start in the bones (primary bone cancer).
The American Cancer Society’s estimates for primary cancer of the bones and joints for 2025 are:
This includes cancers in both children and adults.
Primary bone cancers (cancers that start in the bones) are uncommon, accounting for less than 1% of all cancers. In adults, cancers that spread to the bones from other organs (known as bone metastasis) are much more common than primary bone cancers.
Osteosarcoma is the most common type of primary bone cancer overall, followed by chondrosarcoma and Ewing tumors (Ewing sarcomas). But this varies by age group.
In adults, the most common primary bone cancer is chondrosarcoma. This is followed by osteosarcomas, chordomas, and Ewing tumors. Other types of bone cancer are much less common.
In children and teens, osteosarcoma and Ewing tumors are much more common than chondrosarcoma or other types of bone cancers.
The prognosis (outlook) for people with bone cancer depends on many factors, including the type of bone cancer, the location of the tumor, whether the cancer has spread (metastasized) when it’s first found, the person’s age and overall health, and how well the cancer responds to treatment. For more on this, see Survival Rates for Bone Cancer.
Visit the American Cancer Society’s Cancer Statistics Center for more key statistics.
The American Cancer Society medical and editorial content team
Our team is made up of doctors and oncology certified nurses with deep knowledge of cancer care as well as editors and translators with extensive experience in medical writing.
American Cancer Society. Facts & Figures 2025. Atlanta: American Cancer Society 2025.
National Cancer Institute. SEER Cancer Stat Facts: Bone and Joint Cancer. Accessed at https://seer.cancer.gov/statfacts/html/bones.html on August 10, 2020.
National Comprehensive Cancer Network (NCCN). Practice Guidelines in Oncology: Bone Cancer. Version 1.2020. Accessed at www.nccn.org/professionals/physician_gls/pdf/bone.pdf on August 10, 2020.
Last Revised: January 16, 2025
American Cancer Society medical information is copyrighted material. For reprint requests, please see our Content Usage Policy.
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