Paget's Disease of Bone
What is Paget's Disease of Bone?
Paget's disease of bone is a chronic disorder that disrupts the normal cycle of bone renewal. In healthy bones, old bone tissue breaks down and new tissue forms in a balanced process. With Paget's disease, this cycle becomes chaotic and accelerated. Bone breaks down too quickly and rebuilds in a disorganized pattern.
The result is bone that grows larger but weaker than normal bone. Affected bones become soft, enlarged, and prone to deformity or fracture. The condition usually affects one or a few bones rather than the entire skeleton. Common sites include the pelvis, spine, skull, and legs.
Most people with Paget's disease are over age 50. The condition is more common in people of Northern European descent. Many people have no symptoms and only discover the condition through blood tests or X-rays done for other reasons.
Symptoms
- Bone pain that worsens at night or with activity
- Enlarged or misshapen bones, especially in the skull or legs
- Warmth over affected bones due to increased blood flow
- Hearing loss if the skull bones are affected
- Headaches or ringing in the ears
- Bowed legs or curved spine
- Fractures that occur with minor injury
- Joint pain near affected bones, especially osteoarthritis
Many people with Paget's disease have no symptoms, especially in the early stages. The condition is often discovered by chance during blood tests or imaging for other health concerns.
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Causes and risk factors
The exact cause of Paget's disease remains unknown. Researchers believe both genetic and environmental factors play a role. The disease appears to run in families, with about 15 to 40 percent of patients having a relative with the condition. Specific gene mutations have been identified that increase risk.
Environmental triggers may include viral infections earlier in life, though this theory is still under investigation. Risk increases with age, and the condition is rare before age 40. Men are slightly more likely to develop Paget's disease than women. Geographic location also matters, as the condition is more common in England, Scotland, Central Europe, Greece, Australia, and New Zealand.
How it's diagnosed
Paget's disease is often diagnosed through blood tests that measure bone turnover markers. Alkaline phosphatase, or ALP, becomes markedly elevated when bone-forming cells become overactive. Levels can rise 10 to 25 times higher than normal in affected bones. C Telopeptide, or CTX, measures bone breakdown and also rises with this condition. These markers help doctors assess disease activity and monitor treatment response.
Rite Aid's testing includes both ALP and CTX measurements to help detect this condition. After blood test results suggest Paget's disease, doctors typically order imaging studies like X-rays or bone scans. These images show characteristic changes in bone structure. A bone biopsy is rarely needed but can confirm the diagnosis in unclear cases.
Treatment options
- Bisphosphonate medications to slow abnormal bone breakdown and reduce pain
- Calcium and vitamin D supplements to support bone health, usually 1,000 to 1,500 mg calcium and 600 to 800 IU vitamin D daily
- Pain relievers like acetaminophen or NSAIDs for discomfort
- Regular low-impact exercise to maintain bone strength and joint flexibility
- Physical therapy to improve mobility and prevent falls
- Weight management to reduce stress on affected bones
- Surgery in rare cases to repair fractures, replace damaged joints, or correct deformities
- Regular monitoring with blood tests every 3 to 6 months to track disease activity
Concerned about Paget's Disease of Bone? Get tested at Rite Aid.
- Simple blood draw at your nearest lab
- Results in days, not weeks
- Share results with your doctor
Frequently asked questions
Osteoporosis causes bones to become thin and brittle throughout the skeleton. Paget's disease affects only specific bones and makes them larger but structurally weaker. Paget's disease involves rapid, disorganized bone remodeling rather than simple bone loss.
There is no cure for Paget's disease, but treatment can effectively manage symptoms and slow disease progression. Bisphosphonate medications can reduce bone turnover and pain. Many people respond well to treatment and maintain good quality of life. Regular monitoring helps catch complications early.
Blood tests are very useful for detecting and monitoring Paget's disease. Alkaline phosphatase levels are elevated in about 85 to 90 percent of people with active disease. However, imaging studies are still needed to confirm the diagnosis and identify which bones are affected.
No, many people with Paget's disease have no symptoms at all. Studies suggest that only 20 to 30 percent of people with the condition experience pain or other problems. The disease is often discovered by chance during routine blood work or X-rays done for other reasons.
Untreated Paget's disease can lead to fractures, arthritis in nearby joints, and bone deformities. If the skull is affected, hearing loss or nerve compression can occur. In rare cases, heart failure may develop because affected bones demand increased blood flow. Very rarely, bone cancer can develop in affected areas.
Most doctors recommend blood tests every 3 to 6 months when starting treatment. Once your condition is stable, testing may reduce to once or twice per year. Your doctor will adjust the schedule based on your disease activity and treatment response.
Paget's disease does have a genetic component. About 15 to 40 percent of people with the condition have a family member who also has it. If you have Paget's disease, your children have a higher risk of developing it later in life.
Yes, lifestyle modifications support bone health and overall wellbeing. Getting adequate calcium and vitamin D is important for bone strength. Regular low-impact exercise helps maintain mobility and bone density. Maintaining a healthy weight reduces stress on affected bones.
Very high ALP levels usually indicate active Paget's disease affecting multiple bones or large areas. Your doctor will likely recommend starting or adjusting medication to slow bone turnover. Imaging studies will help identify which bones are affected and assess the extent of disease.
Paget's disease is extremely rare in people under age 40. The condition typically develops in people over age 50 and becomes more common with advancing age. If bone problems occur in younger individuals, doctors will look for other causes first.