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Lupus is an autoimmune disease that affects 1.5 million Americans and causes the immune system to attack the body's own tissue, including muscles, joints, and connective tissue. Lupus can cause chronic fatigue, which can be debilitating and make it difficult to enjoy life and work. While doctors are unsure of the exact cause of lupus-related fatigue, it could be due to a lack of physical activity, medication side effects, other health conditions, trouble sleeping, anxiety, depression, vitamin D deficiency, or pain. In addition to fatigue, lupus can also cause muscle pain and weakness, known as myalgia and myositis, respectively. Over half of people with lupus experience muscle pain and weakness, especially during flare-ups.
| Characteristics | Values |
|---|---|
| Lupus | An autoimmune disease that causes the immune system to attack the body's own tissue, such as muscles, joints, and connective tissue. |
| Muscle Fatigue | A common symptom of lupus, causing chronic and debilitating fatigue that impacts the ability to work and enjoy life. |
| Myalgia | Muscle pain and aches associated with lupus, experienced by about half of those with the condition, especially during flare-ups. |
| Myositis | Inflammation of skeletal muscles, resulting in muscle weakness and loss of muscle strength; often occurs with lupus. |
| Treatment | Exercise can help regain muscle strength; medications may be adjusted to manage side effects, and rheumatologists can provide specialized treatment. |
| Factors Affecting Fatigue | Lack of physical activity, medications, other health conditions (e.g., fibromyalgia, thyroid issues, anemia), trouble sleeping, depression, vitamin D deficiency, and pain. |
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What You'll Learn
Lupus medications can cause muscle weakness and fatigue
Lupus is an autoimmune disease, which means it causes the immune system to attack the body's own tissue, including muscles, joints, and connective tissue. The damage from lupus can trigger pain and inflammation of these body tissues. Lupus arthritis is less likely to cause permanent joint damage than rheumatoid arthritis.
Lupus can also cause inflammation in the muscles, known as myositis, which usually affects the hips, thighs, shoulders, upper arms, neck, and upper pelvis. The most common symptom of myositis is muscle weakness, which can make it difficult to perform everyday tasks such as standing up from a chair or raising your arms.
In addition to the disease itself, lupus medications can also cause muscle weakness and fatigue. Certain medications used to treat lupus, such as steroids, prednisone and other corticosteroids, can have muscle weakness as a side effect. This side effect typically resolves when the medication is discontinued, but it is important to consult a doctor before making any changes to prescribed medications.
Other medications that may contribute to muscle weakness in lupus patients include drugs to lower cholesterol and hydroxychloroquine (Plaquenil®). It is important to discuss any new or worsening symptoms with a healthcare provider, as they can help determine the underlying cause and adjust the treatment plan accordingly.
Furthermore, lupus can increase the risk of developing osteoporosis, a bone disease that weakens the bones and makes them more susceptible to fractures. This condition can further exacerbate muscle weakness and fatigue, especially when coupled with the side effects of certain lupus medications.
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Lupus arthritis causes joint pain and inflammation
Lupus is an autoimmune disease that causes the immune system to attack the body's own tissue, such as muscles, joints, and connective tissue. This can trigger pain and inflammation in these tissues. Lupus arthritis causes joint pain and inflammation, which doctors call "inflammatory arthritis". It can make joints hurt, stiff, tender, warm, and swollen.
Lupus arthritis usually affects joints farther from the middle of the body, like fingers, wrists, elbows, knees, ankles, and toes. It is less likely to cause permanent joint damage than rheumatoid arthritis. About 95% of lupus patients will experience joint symptoms, either arthritis or arthralgia. Arthralgia refers to joint pain without swelling. Lupus arthritis is caused by inflammation of the lining of the joint (synovitis), which leads to swelling, tenderness, and stiffness.
Lupus arthritis is different from other destructive forms of arthritis, such as rheumatoid arthritis (RA), which can cause bones to wear away. Fewer than 10% of people with lupus may develop deformities in their hands, especially if there is looseness in the connective tissue holding the joints together. Lupus arthritis can be treated with glucocorticoids, which help control inflammation and pain. However, prolonged use of high doses of glucocorticoids can cause bone and muscle damage, so they are typically used in the short term while waiting for other immunosuppressive drugs to take effect.
Lupus can also cause inflammation in the muscles, called myositis, which usually affects the hips, thighs, shoulders, and upper arms. Myositis can cause muscle weakness, making it difficult to perform everyday tasks like standing up from a chair or raising your arms. Some medications used to treat lupus, such as steroids, can also cause muscle weakness. This side effect usually goes away when the medication is stopped, but it is important to consult a doctor before making any changes to your prescription medications.
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Lupus myositis causes muscle inflammation and weakness
Lupus is an autoimmune disease that causes the immune system to attack the body's own tissue, including muscles, joints, and connective tissue. This can result in pain and inflammation, with over 90% of people with lupus experiencing joint pain and about half experiencing muscle pain and weakness.
Lupus myositis is a condition characterised by muscle weakness and fatigue, caused by inflammation in the skeletal muscles. Myositis is an umbrella term for a number of conditions that cause muscle inflammation and weakness. Lupus myositis usually affects the muscles in the hips, thighs, shoulders, upper arms, neck, upper pelvis, and legs. The inflammation associated with lupus myositis can make it difficult to perform everyday tasks such as standing up from a chair, raising one's arms, climbing stairs, or getting out of a bathtub.
Myositis is a disease that causes the immune system to attack the muscles, leading to chronic inflammation. This inflammation causes muscle weakness, with the affected muscles feeling weak over time. Myositis can also cause muscle pain and stiffness. While there is no cure for myositis, treatments are available to help manage symptoms and reduce their impact on daily life. These treatments include corticosteroids, immunosuppressants, and intravenous immunoglobulin, along with physical therapy exercises and stretches to improve flexibility and muscle strength.
The symptoms of lupus myositis can be similar to those of lupus, and the conditions can be easily confused, especially during the initial diagnosis. Lupus and myositis are considered "cousins," sharing similarities in symptoms such as fatigue, affecting more women than men, and often exhibiting delayed diagnoses.
Medications used to treat lupus, such as steroids, can also cause muscle weakness as a side effect. This side effect typically resolves when the medication is discontinued, but it is important to consult a doctor before making any changes to prescribed medications.
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Lupus raises the risk of osteoporosis, a bone disease
Lupus is an autoimmune disease that affects different people in different ways. Most people with lupus experience problems with their joints, muscles, or bones. Lupus arthritis, for instance, affects joints farther from the middle of the body, like fingers, wrists, elbows, knees, ankles, and toes.
Lupus also raises your risk for osteoporosis, a bone disease that makes bones weak and more likely to break. Osteoporosis is the most common metabolic bone disease worldwide, affecting more than 200 million people. It is also known as a silent disease, as it has no symptoms other than breaking a bone. The National Osteoporosis Foundation (NOF) reported that 10.2 million people in the United States over 50 years of age have osteoporosis, while 43.4 million have low bone mineral density (osteopenia).
Lupus patients have a five times increased risk of fracture compared to the general population. Women with lupus may be nearly five times more likely to experience a fracture from osteoporosis. This is concerning as 90% of individuals with lupus are women, who are already at an increased risk of osteoporosis. The steroid medications often prescribed to treat lupus can trigger significant bone loss, and the pain and fatigue caused by the disease can result in inactivity, further increasing osteoporosis risk. Bone loss in lupus may also occur as a direct result of the disease.
Other factors that increase the risk of osteoporosis include low levels of calcium or vitamin D in the blood, lupus nephritis, older age, and a family history of osteoporosis. To diagnose osteoporosis, a bone density test, similar to an X-ray or body scan, can be carried out to measure bone strength.
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Lupus can cause vitamin D deficiency, worsening fatigue
Lupus is an autoimmune disease that causes the immune system to attack healthy tissues and organs, such as muscles, joints, and connective tissues. This results in pain, inflammation, and muscle weakness, with over half of people living with lupus experiencing muscle pain and/or weakness. Lupus arthritis mainly affects joints farther from the body's core, such as fingers, wrists, elbows, knees, ankles, and toes. Lupus can also cause myositis, or inflammation of the muscles, leading to muscle weakness.
Lupus is commonly associated with vitamin D deficiency, which can worsen lupus symptoms. Vitamin D plays a crucial role in immune system regulation and the inhibition of specific immune responses. Sun exposure is the primary source of vitamin D, as the skin produces vitamin D when exposed to ultraviolet B radiation. However, people with lupus often avoid sunlight and use sunscreen to prevent disease flare-ups, contributing to vitamin D deficiency. Certain medications used to treat lupus, such as corticosteroids, can also lower vitamin D levels.
Vitamin D deficiency may worsen fatigue in lupus patients. A study involving 31 SLE patients treated with vitamin D3 supplements showed an improvement in disease activity and a reduction in fatigue severity after 12 months. While the factors related to fatigue in SLE are complex, correcting vitamin D deficiency may help improve sleep quality and reduce fatigue.
Additionally, vitamin D supplements are safe and low-cost options for managing lupus. They have anti-inflammatory effects that benefit the muscles, joints, and heart in people with SLE. However, individuals should consult their doctors before taking any supplements, as they may change how medications work or trigger a flare-up.
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Frequently asked questions
Yes, lupus can cause muscle fatigue. Lupus is an autoimmune disease, which means it causes the immune system to attack the body's own tissue, including muscles, joints, and connective tissue. This can result in pain, inflammation, and weakness in the muscles.
People with lupus may experience muscle pain, weakness, and inflammation, known as myalgia and myositis, respectively. Myositis can cause weakness and loss of muscle strength, making it difficult to perform everyday tasks such as standing up from a chair or raising your arms.
Treatment for muscle fatigue in lupus patients varies depending on the location and underlying cause. Doctors often refer lupus patients to rheumatologists, who specialize in treating conditions affecting the muscles, joints, and connective tissues. Exercise, supervised by a physical therapist, can also help to improve muscle strength and function.
