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An osteochondroma

is a benign (noncancerous) tumor on the surface of your bone. Osteochondromas often develop near the growth plate of a bone during childhood. A growth plate is cartilage near the ends of long bones, such as the thigh bone. You may have one or more tumors. Osteochondromas may prevent your bones from growing normally or cause them to become deformed. The cause of osteochondromas is unknown.

Common signs and symptoms include the following:

You may have no signs or symptoms, or you may have any of the following:

  • A painless bump near a joint, such as the knee or shoulder
  • Pain with activity
  • Numbness or tingling in the limb that has the osteochondroma

Treatment for osteochondroma

depends on the size of your tumor, its location, and whether or not it is causing problems. You may not need any treatment. Your healthcare provider may only recommend that you get regular x-rays to check for any tumor changes over time. Surgery to remove the osteochondroma may be needed if it is causing serious problems, such as pain or pressure on a nerve or blood vessel. Surgery to straighten any deformed bones may also be needed.

Contact your healthcare provider if:

  • You notice that your osteochondroma is getting larger.
  • You develop pain, numbness, or tingling in a limb.
  • You have questions or concerns about your condition or care.

Follow up with your doctor as directed:

Write down your questions so you remember to ask them during your visits.

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The above information is an educational aid only. It is not intended as medical advice for individual conditions or treatments. Talk to your doctor, nurse or pharmacist before following any medical regimen to see if it is safe and effective for you.

Learn more about Osteochondroma (Ambulatory Care)

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Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.