Blog
Intestinal microflora: role in health, methods of diagnosis and recovery

Why is everyone talking about intestinal microflora?
In recent years, the topic intestinal microflora has gained popularity not only among doctors, but also among people who care about their health. And for good reason: the intestine is not just an organ of digestion. Its walls contain up to 70% immune cells, and microflora performs dozens of critically important functions: from vitamin synthesis to mood regulation.
When the balance of microorganisms is disrupted, it can affect immunity, metabolism, psycho-emotional state and general well-being. Therefore diagnostics and maintenance of healthy microflora is an important area of modern medicine.
What is intestinal microflora?
Intestinal microflora is a collection of microorganisms that live in the gastrointestinal tract. In a healthy person, there are more than 500–1000 species of bacteria, the total weight of which can reach 1.5–2 kg.
Microflora is divided into:
- Useful (lacto- and bifidobacteria, enterococci)
- Conditionally pathogenic (Klebsiella, enterobacteria, staphylococci)
- Pathogenic (salmonella, shigella, clostridia)
In a healthy intestine, these groups are in balance. But when the number of beneficial bacteria decreases or conditionally pathogenic bacteria overgrow, it develops. dysbiosis.
Functions of intestinal microflora
- May — helps break down complex carbohydrates, proteins and fats
- Immune — participates in the formation of the immune response, protects against pathogens
- Synthetic — produces vitamins (K, B1, B2, B6, B12), fatty acids
- Barrier — prevents the penetration of pathogenic microorganisms
- Regulatory — affects hormone levels, stress reactions, sleep

When should you check your intestinal microflora?
- Constant bloating, flatulence, discomfort after eating
- Frequent diarrhea or constipation
- Decreased immunity, frequent colds
- After a course of antibiotics or chemotherapy
- Skin rashes, acne, dermatitis
- Sleep disturbances, anxiety, depressive states
- Planning pregnancy or impaired nutrient absorption
Methods for diagnosing intestinal microflora
Most often, to assess the state of the microbiome, stool analysis for dysbacteriosis or PCR diagnostics of the microbiome.
Comparative table of methods:
| Method | What does it show? | Features |
|---|---|---|
| Cultural research | Detects live microorganisms, antibiotic sensitivity | Used classically |
| PCR analysis | Detects bacterial DNA, including inactive ones | High sensitivity |
| Metagenomic sequencing | A complete map of the microbiome, down to the strain | Used in scientific and specialized centers |
Causes of microflora disturbance
- Unhealthy diet (overeating sugar, alcohol, fast food)
- Taking antibiotics, hormones, antiseptics
- Chronic stress
- Infectious intestinal diseases
- Physical inactivity and sedentary lifestyle
- Presence of parasites
- Digestive diseases
How to restore microflora balance
1. Diet correction
- Increase quantity fiber (vegetables, fruits, cereals, greens)
- Add products from probiotics — fermented milk products (kefir, yogurt, kimchi)
- Reduce the number sugar, alcohol, refined foods
- Consume prebiotics — substances that “feed” beneficial microflora (garlic, onions, bananas)
2. Probiotics
After antibiotics or in case of dysbiosis, the doctor may prescribe a course of drugs with live bacteria (lactobacteria, bifidobacteria).
3. Active lifestyle
Regular physical activity stimulates intestinal peristalsis and promotes microbiome stability.
4. Stress reduction
Psycho-emotional state directly affects the microflora. Chronic stress changes its composition, reducing the number of beneficial bacteria.
The intestinal microflora is not just a part of the digestive system, but a complex ecosystem that is closely linked to the health of the entire body. Taking care of its balance is an investment in your well-being, immunity and longevity.
