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Multiple myeloma is a cancer that forms in the white blood cells in the bone marrow. It can cause pain in different parts of the body, including the back, legs, hips, and ribs. This is due to the breakdown of bone tissue, which can lead to soft spots in the bones called osteolytic lesions. Myeloma proteins can also damage the kidneys and cause nerve damage, resulting in weakness and numbness. While bone pain is a common symptom of multiple myeloma, it is important to note that this condition can be challenging to diagnose as it may not cause any symptoms until it has progressed to the point of organ damage.
| Characteristics | Values |
|---|---|
| Muscle pain | Multiple myeloma can cause muscle pain and weakness, especially in the legs. |
| Bone pain | Multiple myeloma commonly causes bone pain, usually in the back, hips, ribs, or skull. |
| Bone weakness | Multiple myeloma weakens bones, making them more prone to fractures, especially in the spine. |
| Bone fractures | Approximately 40% of people with multiple myeloma develop bone fractures due to weakened bones. |
| Spinal cord compression | Bone fractures in the spine can cause spinal cord compression, leading to severe back pain and potential nerve damage. |
| Nerve damage | Multiple myeloma can cause peripheral neuropathy, resulting in numbness, weakness, and "pins and needles" sensations. |
| Kidney damage | Myeloma proteins can damage the kidneys, potentially leading to kidney failure. |
| High blood calcium | Multiple myeloma can cause high blood calcium levels, leading to symptoms such as nausea and vomiting, extreme thirst, and loss of appetite. |
| Anaemia | Multiple myeloma can affect red blood cell production, leading to anaemia and associated symptoms such as fatigue and weakness. |
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What You'll Learn
Multiple myeloma can cause bone pain
Multiple myeloma is a cancer that forms in the white blood cells in the bone marrow. It can cause bone pain, which is often the first symptom of the disease. This pain is frequently a persistent dull ache, which may be made worse by movement. It can affect any bone but is most common in the back, hips, ribs, legs, and skull. The pain may feel like it is deep within the body and may hurt to move or use the affected body part. The skin over the bone may also feel tender.
Bone pain occurs in multiple myeloma because the myeloma cells damage and weaken the bones, causing them to break down and release calcium into the blood. This can lead to high blood calcium levels, called hypercalcemia, which can cause other symptoms such as extreme thirst and nausea. Myeloma cells can also produce abnormal proteins that flood into the bloodstream, further contributing to bone pain and other symptoms.
The weakening of the bones caused by multiple myeloma can lead to soft spots in the bones, called osteolytic lesions, which can be seen on imaging tests such as X-rays and CT scans. In addition, up to 90% of people with multiple myeloma will experience bone damage or loss, and approximately 40% will develop bone fractures due to weakened bones. If the bones in the spine are weakened, they may collapse and press on the spinal cord, causing a vertebral compression fracture and potentially leading to permanent nerve damage and paralysis if left untreated.
While bone pain is a common symptom of multiple myeloma, it can be challenging to diagnose early on as the symptoms may be caused by other conditions. Therefore, it is important to speak to a doctor if you are experiencing any of the symptoms mentioned above.
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It can also lead to bone fractures
Multiple myeloma can cause muscle pain and bone pain, most commonly in the back, hips, or skull. This is because myeloma cells can break down bone tissue, weakening the bones and making them more likely to break (fracture). The vertebrae in the spine can collapse if they become weak enough, causing a vertebral compression fracture. This can put pressure on the spinal cord and nerves in the spine, leading to severe back pain and other symptoms.
Bone fractures in multiple myeloma can occur due to weakened bones that are more susceptible to breaking, even from minor injuries. The spine and long bones (arms and legs) are the most commonly affected sites for fractures. Spinal fractures can cause sections of the spine to collapse, leading to severe pain and potential compression of the spinal cord. This compression can result in emergency situations requiring immediate medical attention.
The bone pain associated with multiple myeloma is often described as a persistent dull ache, which may be worsened by movement. It can be felt deep within the body and may spread out from one spot, with one clear area being the most tender. This pain can be managed through various treatments, including chemotherapy, radiation therapy, and palliative care options.
Additionally, multiple myeloma can lead to osteoporosis, a condition characterised by bone weakness and an increased risk of fractures. Osteolytic lesions, or soft spots in the bones, can develop due to the breakdown of bone tissue by myeloma cells. These lesions can be detected by imaging tests, such as X-rays, CT scans, and PET/CT scans.
The risk of bone fractures in individuals with multiple myeloma highlights the importance of seeking medical advice and adhering to recommended treatment plans. Treatments such as chemotherapy and radiation therapy can help kill myeloma cancer cells and promote bone regeneration, reducing the risk of fractures and associated complications.
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Myeloma can cause kidney damage
As the kidneys lose their ability to function properly, they are no longer able to effectively remove excess salt, fluid, and waste products from the body. This can result in a range of symptoms, including an increased susceptibility to infections, particularly pneumonia. People with myeloma may experience slower recovery from infections and may remain sick for extended periods.
The abnormal proteins produced by myeloma cells can also cause the blood to thicken, a condition known as hyperviscosity. This can slow down blood flow to the brain, requiring immediate medical attention. Removing the excess protein through a procedure called plasmapheresis can quickly address this issue.
Additionally, certain medications used to treat myeloma may further damage the kidneys, emphasizing the importance of seeking medical advice and carefully following treatment plans.
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It can cause nerve compression in the spine
Multiple myeloma can cause muscle pain by weakening the bones in the hips and ribs, leading to a persistent dull ache that may be worsened by movement. This cancer develops in the plasma cells in the bone marrow, causing abnormal cells to reproduce and damage bones, leaving soft spots called osteolytic lesions. As the disease progresses, it can cause bone fractures, even from minor injuries, due to weakened bones.
In the context of muscle pain, one of the most significant concerns is the potential compression of the spinal cord. When multiple myeloma weakens the vertebrae, they can collapse and exert pressure on the spinal cord and nerves. This compression can lead to severe back pain and a range of other symptoms.
The vertebrae in the spine can collapse due to the weakening of bones by multiple myeloma. This collapse is known as a vertebral compression fracture and can have serious consequences. The fractured vertebrae can press on the spinal cord, leading to nerve compression in the spine. This condition is a medical emergency that requires immediate medical attention and treatment.
Nerve compression in the spine can cause pain that radiates into the legs and arms. This pain is often described as shooting, sharp, or radiating. It can be accompanied by numbness, weakness, and a pins-and-needles sensation in the affected areas. These symptoms may indicate nerve irritation or peripheral neuropathy, which can be treated with medications such as antidepressants.
Additionally, multiple myeloma can cause high blood calcium levels, leading to muscle pain and weakness. This occurs as a result of bone breakdown, releasing calcium into the bloodstream. The excess calcium can then be deposited in soft tissues, causing further discomfort and pain.
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Myeloma can cause muscle weakness
Additionally, multiple myeloma can weaken the bones, particularly in the spine, hips, and ribs. This bone weakness can result in fractures, even from minor injuries. Vertebral compression fractures can cause severe back pain and may lead to spinal cord compression, requiring immediate medical attention. The weakened bones can also result in osteoporosis, which contributes to overall muscle weakness.
Furthermore, multiple myeloma can cause high blood calcium levels (hypercalcemia), which can lead to muscle weakness. This occurs because the calcium is "stolen" from the bones, weakening them. Additionally, as mentioned earlier, bone marrow affected by multiple myeloma may not produce enough red blood cells, leading to anemia, which is associated with weakness, fatigue, and dizziness.
The muscle weakness caused by multiple myeloma can significantly impact a person's quality of life, and it is important to follow the treatment plan recommended by a doctor to manage the condition and alleviate symptoms. While there is no cure for multiple myeloma, early diagnosis and treatment can lead to remission.
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Frequently asked questions
Yes, multiple myeloma can cause muscle pain and weakness, especially in the legs.
Multiple myeloma is a type of cancer in which abnormal cells reproduce in the bone marrow.
Symptoms of multiple myeloma include bone pain, weakness or numbness in limbs, fatigue, loss of appetite, high thirst, easy bruising, and fever.
Multiple myeloma can be treated with chemotherapy, radiation therapy, and medications to kill cancer cells.
