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Most people with Paget's disease have no symptoms. When symptoms occur, the most common ones are:
Bone pain. It may be worse at night and get better with exercise. People often mistake the pain for normal aging or arthritis.
Deformed bones, such as bowed legs, an enlarged skull or hips, or a curved backbone.
Broken bones, or fractures.
Other symptoms may occur, depending on which part of the body is affected by Paget's disease.
If it affects the skull, you may have symptoms such as headaches, sagging face muscles (facial droop), hearing problems, or loose teeth.
If it affects the spine, it may damage nerves and cause leg pain, numbness, or weakness. It can also cause an emergency condition called cauda equina syndrome that results in loss of feeling in the pelvic area and legs.