Why Your Gut and Your Back Might Be More Connected Than You Think

This is a connection that comes up surprisingly often in clinic – a patient who presents with persistent lower back pain that hasn't responded well to treatment, and when you ask about their digestion, a whole additional story emerges. Or conversely, someone who has been struggling with IBS-type symptoms for years and is also, almost incidentally, dealing with chronic pelvic or back discomfort.

The gut and the spine are more intimately connected than most people realise – anatomically, neurologically and via the fascial system. Understanding this connection can be genuinely transformative for patients who feel as though they have tried everything for one or the other.

The anatomical connection

The large intestine runs up the right side of the abdomen (the ascending colon), across the top (the transverse colon) and down the left side (the descending colon). The small intestine fills most of the central and lower abdomen. All of these structures are attached to the posterior abdominal wall via the mesentery – a fold of peritoneum that also carries the blood and nerve supply to the gut.

When the gut is sluggish, distended, inflamed or restricted, this creates a direct mechanical influence on the structures behind it – including the lumbar spine, the psoas muscle (a key hip flexor and spine stabiliser that runs along the front of the lumbar vertebrae) and the sacroiliac joints. A chronically bloated or tense abdomen is literally pressing on the lower back from the front.

The neurological connection

The gut has its own nervous system – the enteric nervous system, sometimes called the "second brain" – which is in constant bidirectional communication with the brain via the vagus nerve. This gut-brain axis is a significant area of current research, and what is clear is that the gut responds to emotional states, stress and nervous system activation – and that gut dysfunction in turn feeds signals back up to the brain that can influence pain processing, mood and stress levels.

In clinical terms, this means that a patient in chronic pain is more likely to have gut symptoms, and a patient with chronic gut dysfunction is more likely to experience pain amplification. It is not a simple cause-and-effect relationship – it is a loop.

The fascial connection

Fascia – the connective tissue matrix that wraps around and through every structure in the body – connects the gut, the abdominal wall, the diaphragm, the spine and the pelvis into a continuous system. Restrictions in one area propagate through this system. This is why scar tissue from an abdominal surgery (appendix, C-section, hysterectomy) can contribute to back pain or pelvic dysfunction years later – the adhesion is pulling on the fascial network that connects to these structures.

What can be done?

Visceral osteopathy works directly with the mobility of the gut and its connective tissue, the diaphragm, and the fascial connections between them. Alongside this, I will often discuss:

• Hydration – the single most impactful factor for gut motility

• Fibre and fermented foods – where relevant and appropriate

• Abdominal self-massage – a simple, effective technique for supporting gut function between sessions

• Breathing techniques – diaphragmatic breathing directly massages the abdominal organs with every breath

• Stress and nervous system management – because the gut responds directly to the state of the nervous system

  
  

This combination of manual treatment and practical home support often produces results that neither approach achieves alone.

If you are dealing with persistent back pain, gut issues, or a combination of both – I would love to hear from you. Contact me via the website, WhatsApp or @heilkraftosteopathy on socials.