Low back pain and constipation are both common complaints during perimenopause and menopause. On the surface, they don’t seem related at all. One feels musculoskeletal. The other digestive.
But research — and lived experience — show that these two issues often appear together, and for very real physiological reasons. For many menopausal women, constipation can be an overlooked contributor to low back pain, especially when no obvious injury or structural issue is found.
Understanding this connection can make the difference between endlessly treating symptoms and finally addressing the root cause.
Low back pain becomes more common during menopause
Low back pain affects a large percentage of women as they transition through menopause. Studies consistently show that its prevalence increases during midlife, even in women who were previously pain-free.
Hormonal changes play a role. Estrogen influences inflammation, connective tissue health, and pain perception. As estrogen declines, joints and soft tissues may become stiffer, less resilient, and more sensitive to load. This alone can lower the body’s tolerance for stress.
Menopause is also associated with changes in bone density, muscle mass, sleep quality, and stress levels. Muscle loss and deconditioning can shift more work onto the lower back. Poor sleep and chronic stress can amplify pain signals, making discomfort feel stronger and more persistent.
All of this helps explain why back pain often appears “out of nowhere” in midlife. But it still doesn’t explain every case.
The gut–back connection most women are never told about
What’s far less discussed is the relationship between digestion and the lower back.
Constipation and low back pain frequently occur together, and the connection is not just coincidental. The colon sits close to the lower spine and sacral nerves. When stool accumulates due to constipation, the bowel can distend and create pressure in the pelvic and lower spinal area. This pressure may irritate nearby nerves and tissues, producing a dull, aching pain in the lower back.
This type of pain often feels different from a classic muscle strain. Women describe it as pressure-like, deep, or “strange,” and sometimes difficult to pinpoint.
Straining during bowel movements adds another layer. Repeated straining increases tension in the abdominal, pelvic, and back muscles. Over time, this tension can contribute to soreness, fatigue, and postural changes that further load the lower back.
There’s also a neurological component. The gut and lower back share nerve pathways, which means discomfort originating in the digestive system can be perceived as back pain. This phenomenon, known as referred pain, explains why treating the back alone doesn’t always resolve the issue.
Why constipation becomes more likely in menopause
Menopause creates conditions that make constipation more common, even in women who never struggled with digestion before.
Hormonal shifts can slow gut motility. Stress affects the gut–brain axis. Sleep disruption alters digestion. Changes in routine, physical activity, hydration, and diet all add up.
Seasonal changes often make this worse. Travel, holidays, and eating foods the body isn’t used to — richer meals, refined flour, sweets — can tip digestion over the edge. When digestion slows and movement decreases because of pain, a vicious cycle can develop: back pain reduces activity, reduced activity worsens constipation, and constipation increases back discomfort.
Why back pain improves once digestion improves
Medical sources such as the Cleveland Clinic acknowledge that constipation can contribute to low back pain and that, in many cases, the pain eases once bowel function normalizes.
This is an important distinction. Constipation-related low back pain is often acute or episodic rather than chronic. When the underlying digestive issue is addressed — through hydration, movement, dietary adjustments, and stress management — the back pain may resolve without invasive treatment.
That doesn’t mean constipation is always the cause of low back pain. But it does mean it deserves a place on the checklist, especially when imaging and manual treatments don’t explain what’s happening.
When to be cautious and seek medical care
Most cases of low back pain and constipation are mild and manageable, but some symptoms require medical evaluation.
Sudden loss of bowel or bladder control, numbness or weakness in the legs or saddle area, or severe, constant pain — especially at night — should be assessed urgently. Blood in the stool, unexplained weight loss, fever, or severe abdominal pain also warrant prompt medical attention.
Knowing the difference between a functional issue and a red flag is part of staying autonomous and informed in midlife.
The bigger takeaway for menopausal women
Low back pain in menopause is rarely about a single cause. It’s usually the result of several systems interacting — hormones, muscles, joints, stress, sleep, and digestion.
Sometimes the answer isn’t in the spine at all. It’s in how the whole system is coping with change.
Understanding that connection doesn’t mean ignoring pain. It means responding intelligently instead of guessing. And in midlife, that kind of awareness is power.
Sources
- Hinge Health – Menopause and back pain: https://www.hingehealth.com/resources/articles/menopause-and-back-pain/
- Cleveland Clinic – Can constipation cause back pain? https://health.clevelandclinic.org/can-constipation-cause-back-pain
- North American Menopause Society – Digestive changes during menopause: https://menopause.org/
- Spine and Pain LA – The link between constipation and back pain: https://spineandpainla.com/the-link-between-constipation-and-back-pain/
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