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Many exostoses don’t cause symptoms, and you might never know you have one. But — depending on where an exostosis develops — it might be painful when you move or use the affected bone. An exostosis can form on any bone in your body. Some of the most common types of exostoses form on bones in your:
Finding out you have a tumor is always scary. Fortunately, exostoses aren’t cancerous. In fact, you might not need any treatment at all if the exostosis isn’t causing pain or making it difficult to move. Even if you do need an exostosis surgically removed, you should make a full recovery with no long-term effects. Surfer’s ear: An exostosis that forms on the bones in your ear canal. It can make you more likely to experience ear infections. Surfer’s ear can sometimes lead to hearing loss.Bone spurs: Bone spurs are a type of exostosis called osteophytes. Bone spurs develop over long periods of time, usually near joints (where two or more bones meet).
Osteoid osteomas are very similar to exostoses. They typically grow on long bones in people between 5 and 25 years old. They usually cause aching, dull pain that gets noticeably worse at night. What is the difference between an exostosis and an osteochondroma? Which treatments you’ll need for an exostosis depends on where it forms. Which bone it’s on will affect which symptoms you’ll experience and how a healthcare provider will treat the exostosis. How does an exostosis affect my body? Paranasal sinus exostosis: Exostoses that form on bones in your nasal cavities (the narrow spaces around your nose) are called paranasal sinus exostoses. Sarcomas are a rare type of cancerous (malignant) tumor that develops in bones and the connective tissue around them. Sarcomas form when immature bone or tissue cells experience a DNA mutation. Some mutations make them develop into cancer cells. Osteoid osteomas are another type of benign bone tumor. You might see them referred to as just osteomas.Exostoses are benign bone tumors that form on top of your existing bone tissue. In other words, they’re bumps of bone that grow out of one of your bones. They’re not cancerous. This means they’re not a symptom of cancer, and they don’t cause it. An exostosis also won’t spread to other parts of your body (metastasize). Difficulty hearing if you have surfer’s ear. You might be more likely to experience ear infections because the exostosis makes it easier for water to get trapped inside your ear canal. Visit a healthcare provider right away if you notice a new growth on or near one of your bones, especially if it’s painful. Even though exostoses aren’t cancerous, they can develop in similar locations — and share early symptoms — with sarcomas. What is the difference between an exostosis and an osteoma?