What Causes SIBO? Understanding the Root Causes of Gut Health Issues
Discover what causes SIBO and how it impacts gut health. From low stomach acid to lymphatic stagnation, learn about the underlying factors behind SIBO and why proper detoxification is key. My journey is ongoing, but I’m sharing what I’ve learned so far.

If you’ve been struggling with digestive issues that seem relentless—bloating, gas, constipation, pain—it’s natural to wonder what’s going on with your body. For me, it felt like my gut had turned against me overnight, and nothing seemed to make it better.
When I started looking into possible causes, SIBO (Small Intestinal Bacterial Overgrowth) came up over and over again. And while it’s not always the first thing people suspect when dealing with gut issues, it’s far more common than most realize.
So, what exactly is SIBO, and what causes it? In a nutshell, SIBO happens when bacteria that are supposed to live in your large intestine end up thriving in your small intestine instead. And when that happens, it’s not a pleasant experience. Symptoms like bloating, pain, gas, and constipation can hit hard, making you feel like your digestive system is completely out of whack.

Common Causes of SIBO:
- Low Stomach Acid: When your stomach isn't producing enough acid, bacteria that should’ve been broken down and destroyed are allowed to thrive.
- Slow Gut Motility: If your digestive system isn’t moving things along properly, bacteria have more time to multiply where they shouldn’t.
- Structural Abnormalities: Adhesions from surgery, scar tissue, or other structural issues can disrupt the natural flow of your digestive tract.
- Immune System Dysfunction: A weakened or dysregulated immune system can allow harmful bacteria to flourish.
- Dysbiosis: An imbalance of good and bad bacteria in the gut, often caused by antibiotics or food poisoning, can lead to SIBO.
- Lymphatic Stagnation: This is a big one. Your lymphatic system plays a critical role in detoxification, nutrient absorption, and immune function. If it's clogged up or not draining properly, it’s like trying to clean your house with all the windows and doors shut—everything just sits there and festers.
And speaking of the lymphatic system...
Why Lymphatic Drainage Matters for Gut Health
It’s easy to get caught up in trying to fix one thing at a time—like liver detox or boosting your kidneys—without realizing that if your lymphatic system isn’t draining properly, nothing else will work like it should. It’s like trying to clean out a clogged sink by only focusing on the faucet. You have to clear the drain first.
When your lymph system is backed up, it can seriously impact your gut health and make it nearly impossible to clear out harmful bacteria like the ones causing SIBO. Detoxing your liver or kidneys might help a bit, but if the lymph system is stagnant, those toxins have nowhere to go. And all of that just makes the gut environment even more of a disaster zone.

My SIBO Symptoms & Journey
For me, it wasn’t just about gas and bloating, although those were definitely part of the problem. It was about trying to walk around the block and feeling like I’d just run a marathon. I couldn’t stand up from the couch without taking deep breaths because I was so weak. And let’s not even talk about how my stomach would blow up like a balloon whether I ate or not.
Eating became a guessing game. Some days I could eat certain foods just fine, and other days, even those same foods would have me doubled over in pain. I tried following a Low FODMAP diet, but even the “safe” foods would set me off.
What I’ve Learned So Far
I’ve learned that treating SIBO isn’t just about addressing one single thing. You can’t just focus on killing off bacteria and hope for the best. It’s about understanding all the pieces of the puzzle: gut health, lymphatic drainage, digestion, immune support—you name it. And I’m still on this journey myself. Every day is about figuring out what helps and what doesn’t.
The most important thing I’ve learned? This takes time. It’s a marathon, not a sprint. And most importantly, you need to get to the root cause of what’s going on. For me, that’s meant addressing not just my gut health but my lymphatic system, thyroid, and even emotional stress.
So, if you’re struggling with digestive issues or suspect you might have SIBO, know that you’re not alone. And the first step is understanding what might be causing it in the first place.
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I am not a medical professional, and the information provided on this blog is for educational and informational purposes only. Always consult with a qualified healthcare provider before making any changes to your skincare or wellness routine.