
Rheumatoid arthritis (RA) is an autoimmune condition that primarily affects a person's joints, causing pain, fatigue, and stiffness. However, RA can also impact other organs in the body, including the gastrointestinal (GI) system, leading to various stomach issues. While the link between RA and GI problems is well-established, it is essential to understand the potential causes of severe stomach muscle pain in people with arthritis to determine if they are related.
| Characteristics | Values |
|---|---|
| Gastrointestinal (GI) problems | Abdominal pain, bloating, constipation, diarrhea, nausea, indigestion, reflux, mouth sores, dry mouth, stomach cramps, gastroparesis, heartburn, gastroesophageal reflux disease (GERD), peptic ulcers, liver diseases, colitis, diverticulitis, gastritis, ulcerative colitis, Crohn's disease, irritable bowel syndrome (IBS), inflammatory bowel disease (IBD), celiac disease, autoimmune hepatitis, rheumatoid vasculitis, infections, bleeding, perforations, bowel inflammation, esophagitis, weight loss, lack of appetite, and more |
| Arthritis medication side effects | Disease-modifying antirheumatic drugs (DMARDs), nonsteroidal anti-inflammatory drugs (NSAIDs), corticosteroids (prednisone), steroids, leflunomide, meloxicam, upadacitinib, proton pump inhibitors (PPIs), and antibiotics |
| Coexisting disorders | Fibromyalgia, Sjögren's syndrome, depression, anxiety, and mood problems |
| Treatment | Physiotherapy, occupational therapy, light stretching, strengthening exercises, swimming, saltwater rinse, mouthwash with lidocaine, anti-nausea medication, rheumatologist consultation, anti-inflammatories (e.g., tumor necrosis factor inhibitors), heat packs, ice packs, steroid injections, low-dose steroids, and rest |
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What You'll Learn

Arthritis medications can cause stomach pain
People with rheumatoid arthritis (RA) are about 70% more likely to develop gastrointestinal (GI) problems than people without RA. RA can affect either the upper or lower section of the GI tract. While medication side effects are the most likely offender, an increased risk of infection or unchecked inflammation can also be the cause.
Arthritis medications that can cause stomach pain include:
- Disease-modifying antirheumatic drugs (DMARDs)
- Nonsteroidal anti-inflammatory drugs (NSAIDs)
- Corticosteroids (prednisone)
- Tumor necrosis factor (TNF) inhibitors
- Phosphodiesterase 4 (PDE 4) inhibitors
- Janus kinase (JAK) inhibitors
- Anti-TNFs, also known as TNF blockers
- Prescription NSAIDs, such as ibuprofen, naproxen, diclofenac, etodolac, meloxicam, oxaprozin, and piroxicam
NSAIDs work by blocking enzymes that cause pain and swelling. However, some of these enzymes also help to protect the lining of the stomach. Therefore, if the lining of the stomach is exposed to stomach acid, irritation or an ulcer may occur. NSAIDs have been strongly linked with upper-GI problems, including bleeding, ulcers, and inflammation of the esophagus. NSAIDs can also increase the risk of heart attack, stroke, high blood pressure, and kidney disease.
DMARDs can also increase the risk of developing infections in the GI tract, such as infectious colitis or diverticulitis. Corticosteroids can help alleviate inflammation, but they can also weaken the immune system, increasing the likelihood of fungal infections such as oral thrush. They can also result in ulcerations and visceral perforation, which is when a hole forms in the stomach, large bowel, or small intestine. This can cause severe stomach pain, nausea, vomiting, chills, and fever.
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Rheumatoid arthritis can cause gastrointestinal issues
Rheumatoid arthritis (RA) is an autoimmune condition that primarily affects the joints. However, it can also cause symptoms that impact the gastrointestinal (GI) system. Research shows that people with RA are about 70% more likely to develop gastrointestinal issues than those without the condition.
There are several factors that may contribute to the development of GI problems in individuals with RA. One of the main factors is the medication used to treat RA. Disease-modifying antirheumatic drugs (DMARDs), nonsteroidal anti-inflammatory drugs (NSAIDs), and corticosteroids are commonly prescribed to manage RA symptoms, but they are also known to cause digestive issues. These medications can lead to side effects such as pain, bloating, constipation, and diarrhea. NSAIDs, in particular, have been associated with upper-GI problems, including bleeding, ulcers, and inflammation of the esophagus.
In addition to medication side effects, the chronic inflammation associated with RA may also contribute to GI issues. The same inflammation that targets the joints in arthritis can affect other parts of the body, including the digestive system. Conditions such as rheumatoid vasculitis, which causes inflammation in the blood vessels, can impact the GI tract. Approximately 5% of individuals with RA develop rheumatoid vasculitis.
Furthermore, individuals with RA are more susceptible to infections, including gastrointestinal infections. DMARDs can lower the body's ability to fight off infections, increasing the risk of bacterial infections such as infectious colitis and diverticulitis, which can cause abdominal pain and diarrhea.
It is important to note that GI issues can also be caused by conditions that coexist with RA. Common coexisting disorders include inflammatory bowel disease (IBD), autoimmune hepatitis, and celiac disease, which directly affect the GI tract. Additionally, approximately 5%-42% of people with RA may develop fibromyalgia, which is associated with abdominal pain, bloating, constipation, and diarrhea.
While the exact causes of GI issues in individuals with RA can vary, it is clear that there is a strong link between RA and gastrointestinal problems. These issues can significantly impact the quality of life for people living with RA, and it is important to work closely with healthcare professionals to manage and treat these symptoms effectively.
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Rheumatoid arthritis can cause fibromyalgia, which causes muscle pain
Rheumatoid arthritis (RA) is an autoimmune disease that primarily affects a person's joints. However, RA can also cause symptoms that impact the gastrointestinal (GI) system, such as abdominal pain, bloating, constipation, and diarrhoea. RA affects not only the joints but also other organs in the body, including the lungs, eyes, and stomach.
People with RA are about 70% more likely to develop gastrointestinal problems than those without it. This increased likelihood may be due to medication side effects, an increased risk of infection, or unchecked inflammation. RA medications such as disease-modifying anti-rheumatic drugs (DMARDs), nonsteroidal anti-inflammatory drugs (NSAIDs), and corticosteroids are known to cause digestive issues, including abdominal pain.
Fibromyalgia is a central pain disorder that shares some symptoms with RA but is a separate condition. It is a chronic neurological condition that affects the nervous system, altering how the brain and nervous system process and interpret pain. People with fibromyalgia often experience widespread pain and amplified pain responses to everyday injuries. Symptoms of fibromyalgia include musculoskeletal pain, fatigue, sleep problems, and issues with memory and mood.
Research has found that individuals with RA are more likely to develop fibromyalgia. A 2018 study published in the International Journal of Rheumatic Diseases revealed that up to 42% of people with RA in Australia developed fibromyalgia, a musculoskeletal pain condition. This suggests a potential link between RA and the development of fibromyalgia, which can cause muscle pain.
While the exact mechanisms connecting RA and fibromyalgia are not fully understood, the two conditions share certain similarities and interactions. Both conditions involve chronic pain and inflammation, and they can have overlapping symptoms, including pain, fatigue, and sleep disturbances. Additionally, both RA and fibromyalgia are associated with increased levels of inflammation in the body, which may contribute to the development of comorbid conditions.
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Rheumatoid arthritis can cause inflammation in the GI tract
Rheumatoid arthritis (RA) is an autoimmune condition that primarily affects a person's joints. However, it can also cause symptoms that impact the gastrointestinal (GI) system, such as nausea, indigestion, and abdominal pain. RA can affect the upper or lower GI tract, and research shows that people with RA are about 70% more likely to develop GI problems than those without the condition.
Several factors may contribute to the development of GI issues in people with RA. One factor is the medications used to treat RA, which can have unpleasant side effects on the gut. These include disease-modifying anti-rheumatic drugs (DMARDs), nonsteroidal anti-inflammatory drugs (NSAIDs), and corticosteroids. NSAIDs, for example, can irritate the stomach and have been linked to upper-GI problems, such as bleeding, ulcers, and inflammation of the oesophagus. DMARDs can also lower the body's ability to fight off infections, leading to bacterial infections like diverticulitis or infectious colitis in the GI tract. Corticosteroids can help reduce inflammation, but they can also weaken the immune system, increasing the risk of fungal infections and other complications.
In addition to the impact of medications, the underlying inflammation associated with RA may also contribute to GI issues. The same chronic inflammation that affects joints in arthritis can target other parts of the body, including the digestive system. This inflammation can lead to conditions such as rheumatoid vasculitis, which affects the blood vessels and can cause inflammation in the GI tract. Approximately 5% of people with RA develop this condition.
Furthermore, there is growing research suggesting a link between the gut microbiome and the development of RA. The GI tract is a site where there is significant interaction between the environment, the immune system, and the microbiome. Disruptions in this microbiome may be related to the onset of RA or other immune system disorders. Additionally, stress has been identified as a contributing factor to GI issues in people with RA. Stress can promote a pro-inflammatory state in the body, potentially leading to symptoms like ulcers or bowel issues.
While the connection between RA and GI issues is well-established, it is important to note that GI symptoms can also be caused by other factors, such as coexisting conditions or medications unrelated to RA. Working closely with a doctor is crucial to understanding and managing these complex interactions and developing an appropriate treatment plan.
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Rheumatoid arthritis can cause stomach ulcers
Rheumatoid arthritis (RA) is an autoimmune condition that primarily affects a person's joints. However, it can also cause symptoms that impact the gastrointestinal (GI) system, such as nausea, indigestion, abdominal pain, and stomach ulcers. RA patients are about 70% more likely to develop gastrointestinal issues than individuals without RA.
RA medications, comorbid conditions, or the disease itself may be the source of stomach problems. While medication side effects are the most likely cause, an increased risk of infection or uncontrolled inflammation can also be the culprit. RA medications such as disease-modifying anti-rheumatic drugs (DMARDs), nonsteroidal anti-inflammatory drugs (NSAIDs), and corticosteroids are known to cause digestive issues such as pain, bloating, constipation, and diarrhoea. NSAIDs, in particular, have been linked to upper-GI problems, including bleeding, ulcers, and inflammation of the oesophagus. Corticosteroids can also cause ulcerations and visceral perforation, which is a hole in the stomach, large bowel, or small intestine.
Several gastrointestinal conditions common in arthritis patients are directly related to an active inflammatory condition. The same chronic inflammation that targets joints in arthritis can also affect other parts of the body, including the digestive system. Rheumatoid vasculitis, which affects about 5% of RA patients, causes inflammation in the GI tract.
In addition to the impact of RA on the GI tract, some RA treatments can also cause GI symptoms. For example, bacterial infections like diverticulitis or infectious colitis may develop as a result of RA medications impairing the body's ability to fight off infections.
While the link between RA and GI issues is well-established, it is important to note that stomach problems may be unrelated to RA. It is recommended that patients work closely with their doctors to identify the underlying causes of their gastrointestinal symptoms.
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Frequently asked questions
Yes, arthritis can cause severe stomach muscle pain. Rheumatoid arthritis (RA) is an autoimmune condition that affects a person's joints, but it can also cause symptoms that affect the gastrointestinal (GI) system, such as nausea, indigestion, and abdominal pain. RA medications can also cause stomach pain.
Common GI problems caused by arthritis include heartburn, gastroesophageal reflux disease (GERD), peptic ulcers, and certain liver diseases. People with arthritis also have higher rates of abdominal pain, bloating, trouble swallowing, and nausea.
Arthritis is typically treated with medications such as disease-modifying antirheumatic drugs (DMARDs), nonsteroidal anti-inflammatory drugs (NSAIDs), and corticosteroids. In some cases, doctors may recommend injections to remove the fluid causing the swelling in the joint, or steroid injections into the joint or muscle.
Yes, arthritis can cause a range of other health problems, including depression, anxiety, fibromyalgia, and eye problems such as dryness and infection. In rare cases, it can also cause a heart problem called pericarditis, which can lead to severe chest pain.
If you are experiencing severe stomach muscle pain due to arthritis, it is important to consult a doctor or healthcare professional. They can help determine the underlying cause and provide appropriate treatment or management options.











































