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Irritable Bowel Syndrome: Symptoms, Causes & Treatments

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Understanding IBS: Symptoms, Triggers & Management

irritable bowel syndrome (IBS)

Irritable Bowel Syndrome (IBS) is a common gastrointestinal condition that affects millions worldwide, including many Australians. While it’s not life-threatening, IBS can significantly impact a person’s quality of life due to its chronic and often unpredictable nature.

This blog will explore the symptoms, common triggers, and management strategies for IBS, helping you gain better control over this condition.

What is Irritable Bowel Syndrome?

IBS is a functional disorder of the large intestine, meaning it disrupts normal bowel function without causing visible damage. The exact cause of IBS remains unclear, but it’s generally believed to involve a combination of factors, including abnormal gut motility, heightened sensitivity to pain in the digestive tract, and a dysregulated gut-brain connection.

There are four main types of IBS:

Common Symptoms of IBS

IBS symptoms vary from person to person but typically include:

  • Abdominal pain or cramping
  • Bloating and excessive gas
  • Diarrhoea, constipation, or alternating between the two
  • Mucus in the stool

These symptoms can be intermittent, and their intensity often fluctuates, making it hard to predict flare-ups. The discomfort and unpredictability of IBS can disrupt daily activities and may affect both physical and mental wellbeing.

What Causes IBS

IBS triggers are not the same for everyone, but several common factors are known to cause flare-ups:

Dietary Triggers

Certain foods are notorious for triggering IBS symptoms. These include:

1. High-FODMAP foods

are foods that contain high levels of certain types of carbohydrates called FODMAPs. FODMAP stands for “Fermentable”, “Oligosaccharides”, “Monosaccharides” And “Polyols”. Examples of high-FODMAP foods include:

  • Fruits: apples, pears, cherries, mangoes, watermelon
  • Vegetables: onions, garlic, cauliflower, mushrooms
  • Dairy products: milk, soft cheeses, ice cream (lactose-containing)
  • Legumes: lentils, chickpeas, beans
  • Sweeteners: sorbitol, mannitol, xylitol, high-fructose corn syrup
2. Fatty or fried foods
3. Dairy products

particularly in individuals who are lactose intolerant

4. Artificial sweeteners (e.g., sorbitol)
5. Alcohol and caffeine

Following a low FODMAP diet, developed by Australian researchers, is one of the most effective ways to manage IBS. This involves avoiding certain high-FODMAP foods and slowly reintroducing them to identify specific triggers.

Stress and Emotional Triggers

Stress plays a significant role in IBS, and many people experience flare-ups during high-stress situations. This is due to the gut-brain axis, which means the digestive system is closely linked to emotional health. Techniques that reduce stress, such as mindfulness, meditation, and yoga, are often helpful for managing IBS symptoms.

Hormonal Changes

Women with IBS often notice a worsening of symptoms around their menstrual cycle, pregnancy, or menopause due to fluctuations in hormones like oestrogen and progesterone.

Gut Microbiome Imbalance

Emerging research shows that an imbalance of gut bacteria (known as dysbiosis) may play a role in IBS. Some people may benefit from taking probiotics to help rebalance gut flora, although the effectiveness varies.

How is IBS Diagnosed?

Diagnosing IBS is often a process of elimination, as there is no single test that confirms the condition. Doctors usually diagnose IBS based on symptoms and by ruling out other conditions, such as inflammatory bowel disease (IBD), celiac disease, or food intolerances.

If you suspect you have IBS, it’s important to consult with a healthcare professional for a thorough assessment. They may recommend tests like blood work or stool samples to rule out other potential causes of your symptoms.

What blood tests might you need?

While blood tests cannot directly diagnose irritable bowel syndrome, they are useful for excluding other conditions that may mimic IBS. Common blood tests include:

  • Complete Blood Count (CBC): Checks for anemia or infection.
  • C-reactive Protein (CRP): Looks for inflammation, indicating conditions other than IBS.
  • Thyroid Function Test: Ensures the thyroid is working properly, as thyroid issues can mimic IBS symptoms.
  • Celiac Disease Tests: Check for celiac disease, which has symptoms similar to IBS.

IBS vs. IBD

IBS and IBD (Inflammatory Bowel Disease) tend to have similar symptoms. That’s why one is often mistaken for the other. But they are different conditions, and knowing their difference is crucial in getting the right diagnosis and treatment. Here’s what to look out for:

IBS
IBD
  • No visible inflammation.
  • Symptoms include abdominal pain, bloating, constipation or diarrhoea.
  • Diagnosed based on symptoms, excluding other conditions.
  • Treatment focuses on managing symptoms through diet and lifestyle changes.
  • Includes Crohn’s disease and ulcerative colitis caused by immune system dysfunction.
  • Symptoms also include abdominal pain and changes in bowel habits, but with visible inflammation, possible bleeding, and weight loss.
  • Treated with medication, sometimes surgery.
  • Requires diagnostic tests like colonoscopy and imaging to see inflammation.

How to Manage IBS

While there’s no cure for IBS, a range of treatments can help manage the symptoms. The best approach will depend on the type of IBS you have and the severity of your symptoms.

Dietary Adjustments

Working with a dietitian to identify food triggers and follow a low FODMAP diet can significantly improve IBS symptoms. Some people find relief by avoiding common triggers like caffeine, alcohol, and processed foods, while others may need more structured interventions.

Medications

Medications can be prescribed to target specific symptoms:

  • Laxatives for constipation (IBS-C)
  • Antidiarrhoeals for diarrhoea (IBS-D)
  • Antispasmodic medications to relieve cramping and abdominal pain
  • In some cases, low-dose antidepressants may be used to modulate pain signals from the gut to the brain.

Psychological Therapies

Given the strong link between stress and IBS, psychological therapies can be an effective tool for managing symptoms. Cognitive behavioural therapy (CBT) and gut-directed hypnotherapy are two approaches that have been shown to help individuals with IBS reduce the impact of stress on their digestive system.

Probiotics

Probiotics are another potential treatment option for IBS, as they can help restore a healthy balance of bacteria in the gut. However, the effectiveness of probiotics depends on the specific strain and individual, so it’s important to choose the right type under the guidance of a healthcare professional.

Lifestyle Modifications

In addition to dietary and medical interventions, lifestyle changes can play a key role in managing IBS. Regular exercise, stress management techniques, and adequate sleep are all important for maintaining gut health. Practices like yoga, meditation, and even deep-breathing exercises can also help reduce the impact of stress on IBS.

Living Well with IBS

IBS may be a chronic condition, but with the right approach, it is manageable. Learning to identify your triggers, make dietary adjustments, and practice stress-reduction techniques can help you live a full and active life with fewer disruptions from symptoms.

It’s also important to seek support from a healthcare provider when needed. Regular check-ins can ensure your treatment plan is working and help address any new symptoms or concerns that may arise.

In summary, IBS is a complex condition with varying symptoms and triggers, but with an informed approach, you can gain control over it. Understanding your body, working with healthcare professionals, and maintaining a healthy lifestyle are all key steps to managing IBS effectively.

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