Paget disease usually comes on gradually. In the early stages, 90% of people have no symptoms. Later, the most common symptom is a dull, mild pain in the affected bones. Often the pain is constant, present at all times of the day, and made worse by exertion. The most common locations are the skull, neck, hips, or pelvis. Because blood flow is increased in the affected bones, the affected bones may feel warm. Bones often get larger in Paget disease. When the skull is affected, there may be an increase in hat size.
Other symptoms include:
Over time, deformities such as bowlegs, a barrel chest, and other bone problems can occur.