Irritable bowel syndrome (IBS) is a chronic condition that affects the digestive system and is well-known for causing symptoms like abdominal pain, cramping, bloating, constipation, and diarrhea. But what many people don’t realize is that IBS symptoms aren’t always isolated to the gut.
In fact, IBS can show up in other parts of the body—sometimes in surprising ways. One symptom that catches many people off guard is backache. You might not immediately think of IBS when you feel a dull ache in your lower back—but the two may be more connected than you think.
In this post, we’ll explore:
- Does IBS cause backache?
- What IBS back pain feels like
- Why it happens
- What you can do to find relief
Does IBS Cause Backache
Yes—IBS can cause backache, although it isn’t considered one of the primary diagnostic symptoms. The official Rome IV criteria, which outline the common symptoms of IBS, focus mainly on abdominal pain and changes in bowel habits. However, researchers increasingly recognize that irritable bowel syndrome (IBS) can affect other parts of the body, not just the digestive tract.
Some studies suggest that people with IBS frequently experience chronic pain conditions outside the gut, including musculoskeletal discomfort such as back pain. Researchers believe this overlap may be related to brain interactions within the gut–brain connection, which influence how the nervous system processes pain signals throughout the body. In other words, the same mechanisms that cause pain in the abdomen can sometimes lead to discomfort in nearby areas like the lower back or pelvis.
Backache related to IBS is often linked to digestive symptoms themselves. Issues like bloating, intestinal pressure, or pelvic floor tension can contribute to IBS and back pain without there being a structural problem in the spine.
If you’ve experienced unexplained back pain during digestive flare-ups, you’re not alone. To learn about other surprising symptoms, check out what are the symptoms of an ibs attack.
What Does IBS Back Pain Feel Like
IBS and back pain usually feel different from injuries caused by muscles, discs, or joints. Instead of sharp or stabbing pain, IBS-related back discomfort is often described as a dull, achy pressure that comes and goes alongside digestive symptoms.
This type of backache is often:
- Located in the lower back or sacral area
- Worse after meals or during periods of bloating
- Associated with constipation or abdominal pressure
- Improved after a bowel movement
Some people also experience pelvic heaviness or referred pain that spreads to the hips, glutes, or lower back. Because the nerves of the digestive system share pathways with other parts of the body, pain signals from the gut can sometimes be perceived in nearby areas.
Unlike structural back injuries, IBS-related back pain usually follows digestive patterns. When IBS symptoms calm down, the back discomfort often improves as well.
How Do You Get Backache With IBS
Bloating and Abdominal Pressure
One of the most common reasons people with IBS experience back discomfort is bloating and abdominal pressure. When the intestines fill with gas or slow-moving stool, the abdomen expands and places pressure on surrounding muscles and nerves.
This buildup of pressure can cause pain in the abdomen that radiates outward, sometimes reaching the lower back or pelvic region. Because the gut and spine share nerve pathways, this type of referred pain can make digestive symptoms feel like musculoskeletal pain.
When bloating improves—through managing IBS, adjusting diet, or following a personalized treatment plan—this type of IBS-related back discomfort often improves as well.
Pelvic Floor Muscle Dysfunction
Another reason people with IBS may experience back discomfort is pelvic floor muscle dysfunction. The pelvic floor is a group of muscles that support the bowel, bladder, and other organs in the pelvis. These muscles also work closely with the core and lower back to stabilize the body.
When the pelvic floor becomes tight, overactive, or poorly coordinated—a common issue in irritable bowel syndrome (IBS)—it can contribute to tension and referred pain in nearby areas, including the lower back. Some people may actually interpret pelvic discomfort as low back pain, especially during IBS flare-ups that involve constipation, straining, or abdominal pressure.
If you’d like to learn more about how pelvic floor health affects IBS symptoms, listen to my conversation with pelvic floor physical therapist Dr Molly Bachmann in the Pelvic Floor & IBS podcast episode with Dr. Molly Bachmann, where we dive into how pelvic muscle tension can impact the spine, hips, and abdomen.
Referred Pain From the Gut
Another reason people experience IBS and back pain is something called referred pain. Referred pain occurs when discomfort originating in one part of the body is felt somewhere else. This happens because many nerves serving the digestive system share pathways with nerves that supply nearby parts of the body, including the lower back, pelvis, and hips.
When the intestines become irritated, inflamed, or distended—as often happens during IBS flare-ups—pain signals can travel through shared nerve networks in the spinal cord. The brain may then interpret those signals as coming from the lower back or sacral region instead of the gut itself. As a result, a person may feel back discomfort even though the original issue is occurring in the intestines.
This overlap between nerve pathways is why digestive symptoms like bloating or pain in the abdomen can sometimes radiate outward. Similar patterns occur with other pelvic health conditions, too. For example, people with bladder disorders such as interstitial cystitis often report pain in the lower back, sacrum, or tailbone even though the bladder is the primary source of irritation.
Because IBS involves heightened nerve sensitivity, this type of referred pain can be more noticeable for people with IBS than for individuals without digestive disorders.
Stress and Gut–Brain Connection
IBS is strongly influenced by the gut brain connection, the communication network linking the digestive tract with the nervous system. When the brain perceives stress or a potential threat, it activates the body’s stress response. This response can affect digestion, muscle tension, and pain perception all at the same time.
For people with irritable bowel syndrome (IBS), stress can trigger changes in gut motility, increase intestinal sensitivity, and intensify abdominal pain. At the same time, the body may tighten muscles in the core, hips, and lower back as part of its protective response. Over time, this tension can contribute to chronic pain in multiple areas.
IBS is also associated with visceral hypersensitivity, meaning the nervous system becomes more reactive to normal digestive sensations. When this heightened sensitivity combines with muscle tension, the brain may amplify pain signals coming from both the gut and surrounding muscles.
Because of this connection, treatments that target the nervous system—such as cognitive behavioral therapy, relaxation training, and other mind-body approaches—can be effective for managing IBS symptoms. These therapies help regulate stress responses and improve the way the brain processes pain signals from the gut and other areas of the body.
If you’d like to learn more about how stress and gut-brain connection affects IBS symptoms, listen to my conversation with Dr Ali Navidi in the IBS & Gut-Brain Connection Episode, where we dive into this topic and Dr Navidi sharing tools to help you feel better.
Other Health Conditions Overlapping With IBS
IBS doesn’t always occur on its own. In many cases, it overlaps with other health conditions that involve chronic inflammation, pain sensitivity, or immune system changes. Research has shown that people with IBS may also experience conditions such as rheumatoid arthritis, fibromyalgia, chronic fatigue syndrome, or pelvic pain disorders.
When these conditions occur together, they can contribute to widespread chronic pain that affects multiple areas of the body—including the lower back, joints, and muscles. This overlap may be related to shared mechanisms such as central nervous system sensitization, immune activity, or disruptions in the gut brain connection.
Because symptoms can overlap, it’s important to look at the bigger picture when evaluating IBS-related discomfort. If you’re experiencing persistent back pain along with digestive symptoms, fatigue, or unexplained weight loss, a healthcare professional can help determine whether other underlying conditions may be contributing.
Working with a qualified provider allows you to create a personalized treatment plan that addresses both digestive health and any overlapping conditions. A comprehensive approach to treatment for IBS often includes dietary strategies such as a FODMAP diet, stress management techniques, and targeted therapies designed to reduce inflammation and improve overall gut health.
Download our IBS Patient Toolkit
How To Get Rid Of IBS Back Pain
Managing IBS and back pain often means addressing both digestive triggers and musculoskeletal tension. Here’s what can help:
Apply Heat to the Abdomen or Lower Back
Heat helps relax tense muscles and soothe visceral discomfort. Use a warm compress or heating pad on your lower back or abdomen during flare-ups.
Use the Low FODMAP Diet Temporarily
A FODMAP diet can help reduce bloating and gas that contribute to abdominal and referred back pain. This should be used short-term under professional guidance, as long-term restriction is not recommended.
Practice Gentle Movement or Stretching
Yoga, walking, or pelvic tilts can relieve pressure and improve blood flow to the spine and gut. Avoid lying flat for long periods—gentle movement helps reduce pain.
Work With a Pelvic Floor Physical Therapist
If your back pain is related to pelvic floor dysfunction, pelvic floor physical therapy can be transformative. These therapists assess your muscle tone and help retrain proper coordination—supporting both digestion and spine comfort.
Try Cognitive Behavioral Therapy (CBT)
CBT targets the brain interactions that drive chronic pain perception. Studies show it can improve both IBS symptom severity and how the brain processes pain. It’s especially helpful if stress, trauma, or anxiety contributes to flare-ups.
Create a Comprehensive Treatment Plan
No single tool works for everyone. Your best approach will likely combine diet and lifestyle changes, gut-directed therapy, nervous system regulation, and professional guidance. If you’ve experienced weight loss, fatigue, or new back pain, always talk to a healthcare professional to rule out other causes.
Final Thoughts
So, does IBS cause backache? Yes—it can. While it may not be the first symptom people associate with IBS, back pain is a real and common issue for many. Whether caused by bloating, referred pain, pelvic floor dysfunction, or gut–brain connection imbalances, IBS back pain deserves just as much attention as pain in the abdomen.
The good news? With the right support, you don’t have to live in constant discomfort. Through targeted therapies, nutrition, and nervous system regulation, you can ease both digestive and back symptoms—and feel more in control again.
Need help managing IBS and back pain together? Download the free IBS Patient Toolkit or watch our free IBS Relief Masterclass to get started.
Free IBS Relief Masterclass
10 years of IBS expertise, distilled into 45 minutes.
References
Spiegel BMR. Gravity and the gut: a hypothesis of irritable bowel syndrome. Clin Transl Gastroenterol. 2022;13(12):e00509. doi:10.14309/ctg.0000000000000509.