Dysbiosis

Dysbiosis is not a standalone diagnosis but a change in the composition of the intestinal microflora that usually accompanies other conditions. It is not treated separately: the doctor looks for the cause — poor diet, infection, taking antibiotics, a disease of the stomach or intestines. Patients with complaints of bloating, irregular stools, or abdominal discomfort consult a gastroenterologist, less often a general physician. Examination helps to understand what exactly is disturbed and to choose a suitable approach.

Which doctorGastroenterologist, also a general physician
UrgencyRoutine appointment
Reviewed byMedical editorial team
Updated

For typical complaints of abdominal discomfort, book a routine appointment with a gastroenterologist or general practitioner at a convenient time. An urgent appointment or emergency care is needed for severe pain, repeated vomiting, blood in the stool, a high temperature or signs of dehydration.

Main

  • Dysbiosis is not a diagnosis: it is a change in the composition of the gut microflora that accompanies other conditions.
  • Main causes: antibiotics, intestinal infections, a monotonous diet, chronic diseases of the stomach and intestines.
  • Common signs: bloating, irregular stools, heaviness in the abdomen after eating, rumbling, reduced appetite, a taste in the mouth.
  • Which doctor to see: a gastroenterologist, or in their absence a general physician; stool tests for microflora are not widely used.
  • Seek urgent medical help: severe abdominal pain, repeated vomiting, blood in the stool, high temperature, dehydration.

What is dysbiosis

Dysbiosis is a change in the usual composition of microorganisms living in the intestine, in which beneficial bacteria become fewer and others become more numerous. It is not an independent disease, but a condition that usually accompanies other digestive or metabolic disorders.

What happens in the body

The intestinal microflora is a community of microorganisms that take part in digesting food and support the body's defences. Under normal conditions, different groups of bacteria coexist in a certain balance and do not interfere with each other. Under unfavourable circumstances, some of the beneficial microorganisms die, and their place is taken by others, including conditionally pathogenic ones. Such a shift in composition affects the functioning of the intestine and the person's general well-being. The changes may manifest as bloating, unstable stools, heaviness in the abdomen and reduced appetite. Sometimes changes in the microflora are secondary and resolve after correction of the underlying condition. An abnormality in a test on its own, without complaints, does not always require treatment, so it should be assessed together with a doctor.

What causes it to develop

  • Taking antibacterial or certain other medicines: they suppress not only the causative agent but also the beneficial bacteria of the intestine, so the balance of the microflora is disturbed.
  • Past intestinal infections: after them the composition of microorganisms is not restored immediately, and this takes time, and sometimes a doctor's help is required.
  • Unbalanced nutrition and a sharp change in diet: monotonous food or a sudden switch to a new menu deprives the bacteria of their usual environment and changes their ratio.
  • Chronic diseases of the stomach, intestine, liver or pancreas: they disrupt the digestion of food, and along with it the living conditions of the microorganisms in the intestine.
  • Reduced immunity and severe general diseases: weakened defences hold back the growth of random microbes less effectively, and they become more numerous than usual.
  • Frequent stress and disrupted sleep and eating patterns: constant tension and irregular meals upset the functioning of the intestine, so the composition of the flora gradually changes.

Who encounters this more often

Changes in the composition of the intestinal microflora are more often encountered by people who have recently taken antibacterial agents or have had an intestinal infection. Also in the attention group are those who live with chronic diseases of the stomach, intestine, liver or pancreas. Not infrequently, this condition occurs in people with weakened immunity and in those who are enduring severe general diseases. Dietary habits also play a role: a monotonous diet, a sharp change in usual food, irregular meals. Lifestyle should be considered separately, because frequent stress and disrupted sleep patterns gradually affect the functioning of the intestine. Most often it is not one cause but several at once, and then the changes are more pronounced. Therefore, the doctor assesses the complaints, nutrition and examination data together, and not by a single sign.

What symptoms can occur?

The manifestations of dysbiosis are non-specific and often coincide with the symptoms of the underlying disease that caused the change in the composition of the microflora. Complaints may be constant or occur after eating, stress, or taking medicines.

How it is noticed at the very beginning

At the beginning, dysbiosis manifests as bloating and increased gas formation, which a person usually attributes to fatigue or a heavy supper. Stools become unstable: loose stools alternate with constipation for no apparent reason. After eating, heaviness or discomfort in the abdomen appears, sometimes with rumbling and gurgling in the intestines. Appetite decreases, there may be nausea, and an unpleasant taste remains in the mouth. Such complaints may be constant or occur in waves after stress and taking medicines. The severity of symptoms varies: from mild discomfort to a noticeable reduction in quality of life. A diagnosis cannot be made on sensations alone; an assessment by a doctor is needed.

Signs that occur most often

  • Bloating and increased gas formation: the abdomen feels distended, this interferes with work and sleep, and the cause often remains unclear.
  • Unstable stools: loose stools alternate with constipation, and such a rhythm disrupts the usual daily routine.
  • Heaviness or discomfort in the abdomen after eating: the sensation appears regularly, and because of it a person begins to avoid food.
  • Rumbling and gurgling in the intestines: the sounds are audible to those around, this creates awkwardness in public places.
  • Decreased appetite and nausea: food stops being enjoyable, portions decrease, and weight may gradually fall.
  • Unpleasant taste in the mouth: it persists between meals and does not go away after brushing the teeth.

When to seek help urgently

When to seek help urgently
SignHow urgentWhat to do
Typical discomfort in the abdomenRoutineMake an appointment with a gastroenterologist or a general physician
Severe abdominal painUrgentCall an ambulance
Repeated vomitingUrgentSeek emergency care
Blood in the stoolUrgentDo not wait, call a doctor
High temperature or signs of dehydrationUrgentCall an ambulance

Examinations and tests

Examination for complaints about bowel function is built around the search for a specific cause, not around the label "dysbiosis" itself. Below are the main steps that doctors use, and what information each of them provides.

How the examination begins

The examination begins with a detailed conversation and a physical examination, during which the doctor clarifies the nature of the complaints, dietary habits and medications being taken. The diagnosis of "dysbiosis" itself is not recognised in evidence-based medicine, so the specialist looks for a disease that explains the symptoms. The doctor asks about how long the complaints have lasted, their connection with food, past infections and operations, as well as chronic conditions. Separately, it is clarified which remedies the person takes regularly, including hormonal and pain-relieving ones. Then the abdomen is examined and the general condition is assessed in order to rule out warning signs. Laboratory stool tests for the composition of the microflora are not widely used, since their results poorly predict the benefit of treatment. The set of further investigations is selected individually, taking into account symptoms and medical history. This order helps avoid wasting time on secondary tests and move straight to the likely cause of the complaints.

What is prescribed and what it shows

What is prescribed and what it shows
ExaminationWhat it showsWhen it is prescribed
Complete blood count and blood chemistryInflammation, anaemia, liver and kidney functionFor any long-lasting digestive complaints
Stool test for occult blood and inflammatory markersAdmixture of blood and signs of inflammation in the bowelFor changes in stool, pain, admixtures
Breath testsIntolerance of certain sugarsFor bloating and a connection of symptoms with food
Endoscopy of the stomach or bowelCondition of the mucosa, ulcers, polyps, inflammationWhen indicated: blood, anaemia, marked weight loss
Ultrasound of the abdominal organsStructure of the liver, gallbladder, pancreasFor pain, bitterness, suspected organ pathology

What is worth preparing for the appointment

  • Discharge summaries: take the conclusions of previous visits and hospitalisations so that the doctor can see the dynamics and not repeat investigations already undergone.
  • Test results: collect previous laboratory forms, including those done elsewhere — this helps compare the values.
  • List of remedies being taken: write down everything you take regularly or periodically, with the names, because this affects the interpretation of the complaints.
  • Observation diary: note how stool, bloating and pain change during the day and after which food — such records clarify the picture.
  • Questions for the doctor: formulate in advance what you want to find out at the appointment, so as not to forget anything important in the conversation.

Which doctor should I see?

This section explains which doctor to consult for dysbiosis, what happens at the first appointment and what areas of care it involves. It provides guidance for choosing a specialist without evaluating specific clinics or doctors.

Which specialist manages this condition

Dysbiosis is managed by a gastroenterologist, or, in their absence, by a general physician (therapist). A gastroenterologist understands how the gut works and related disorders, so it is they who assess the complaints and history of the condition. A general physician manages the patient when a specialist is not available nearby or when an initial assessment is needed. At the first appointment, the doctor asks in detail about complaints, past illnesses and medications being taken. They clarify which remedies the person has received previously and how their wellbeing changed while taking them. This helps to understand what exactly affected the microflora and where to focus attention. If the cause is related to another condition, the doctor decides whether input from a related specialist is needed. It is worth booking an appointment with a gastroenterologist, and if one is unavailable, starting with a general physician.

What treatment consists of

  • Underlying condition: care is directed at the identified cause rather than at the state of the microflora itself, so what changed it is treated first.
  • Diet: the diet and meal schedule are reviewed together with the doctor to remove foods that maintain the unpleasant symptoms.
  • Medications: remedies that affected the microflora are discontinued or replaced only by the doctor's decision; it is not advisable to do this on your own.
  • Restoring the microflora: specific remedies are selected when indicated, based on examination results rather than general advice.
  • Follow-up: the condition is reassessed to understand whether the chosen approach is helping and whether anything needs to be changed.

What depends on the patient themselves

The result largely depends on how regularly the person is seen by the doctor and follows their recommendations. If follow-up is interrupted after the first appointment, the doctor will not see how the condition is changing and will not be able to adjust care in time. Taking remedies without a prescription often proves useless and sometimes harmful, since it does not take the cause of the complaints into account. A person should note down what they eat and which medications they take, so as to convey this accurately to the doctor at the appointment. It is important to report any changes in wellbeing, not only those that seem significant. Repeat visits give the doctor a basis for assessment and help avoid returning to steps already taken. Calm and consistent adherence to recommendations works better than abrupt decisions made on one's own. Agree with the doctor on the timing of the next visit and keep to it.

What helps prevent an exacerbation?

Dysbiosis is not considered a separate disease, so there is no specific prevention against it. Sensible use of medicines and everyday care for digestion help reduce the risk of exacerbation.

What is changed in habits

Habits that support digestion concern food, sleep and attitude to medicines. A person takes antibacterial agents only as prescribed by a doctor, and not on the advice of acquaintances or from the supplies of the home medicine cabinet. A varied diet with a sufficient amount of plant food gives the intestines constant work and supports the environment in which beneficial microorganisms live. Intestinal infections are treated in good time, without waiting until loose stools and weakness become a familiar background. Chronic diseases of the stomach and intestines require observation by a doctor and following his recommendations, and not independent experiments. Sufficient sleep and stress management noticeably affect well-being: after a hard week, many notice bloating, heaviness and irregular stools. If such signs recur after every overload, it is worth reviewing the daily routine, and not putting everything down to chance.

What should be kept under control

  • Taking antibacterial agents: any such prescriptions are discussed with a doctor, because uncontrolled use disrupts the composition of the intestinal microflora.
  • Composition of the diet: plant food should be present daily, otherwise digestion loses its usual load and becomes vulnerable.
  • Past intestinal infections: after them it is important to make sure that stools and appetite have recovered, and that no alarming signs remain.
  • Chronic diseases of the digestive system: with them, observation by a doctor is ongoing, since exacerbation often develops gradually and imperceptibly.
  • Sleep and stress level: they should be assessed honestly, because lack of sleep and constant tension affect the work of the intestines.
  • Regular preventive check-ups: in chronic diseases they help to notice changes earlier than pronounced complaints appear.

How often to see a doctor

The regularity of visits to a doctor in chronic diseases of the digestive system is important even when well-being seems good. A person gets used to mild discomfort, stops noticing bloating after eating or a change in stools, and at the check-up these details come up and change the picture. The doctor compares the complaints with the course of the underlying disease and decides whether anything needs to be adjusted. If new symptoms, weakness or weight loss have appeared, the visit should not be postponed, because the cause may not be related to the usual ailment. With a stable condition, planned check-ups are sufficient, the frequency of which is determined by the attending doctor. Missed visits lead to exacerbation being noticed later, when it has already unfolded. It is easier to maintain the usual rhythm of life and nutrition when the condition remains under observation, and is not found out after the fact.

What is worth remembering

The conversation about dysbiosis should end not with a list of tests, but with an understanding of how the reader should act going forward. Below is the main thing that helps one avoid getting confused by contradictory advice and make a calm decision.

Main conclusions

Dysbiosis is not a standalone diagnosis, but a description of the state of the microflora, so looking for a single universal cause is pointless. Changes in the composition of bacteria often accompany other disorders: infections, bowel diseases, prolonged use of antibiotics, dietary disruptions. Dysbiosis can be noticed by unpleasant sensations in the abdomen, unstable stools, bloating, but these same signs occur in many other conditions. That is precisely why one should not rely only on one's own guesses and on advertising promises. It is reasonable to discuss dysbiosis with a specialist who will compare the complaints, the history of illnesses and the results of examinations. Do not postpone a visit if the unpleasant symptoms persist for a long time or intensify. Do not self-medicate and do not try to correct dysbiosis based on someone else's experience from the internet. The most reliable thing is to honestly tell the doctor about everything that bothers you and together decide whether additional steps are needed.

Portal Editorial TeamMedical editorial team

Covers what does not belong to a single specialty: how an appointment works, what to bring with you, how to read a referral. Every text is reviewed by a relevant doctor before publication.

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Who treats it

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Gotskaya Angelina Nikolaevna

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Why you can trust this doctor

  • Work experience21 years
  • Who they seeChildren aged 18 years and over and adults

Price on request

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  • Work experience41 years
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Questions and answers

Answered by the article’s medical editor.

Does dysbiosis occur in children?

Yes, the composition of the microflora changes at any age, and in children too. In infants the gut is colonised gradually, so fluctuations in composition are common here and are often related to feeding or a past infection. If a child has persistent bloating, irregular stools or restlessness after eating, show them to a paediatrician and, if necessary, to a gastroenterologist.

How does the course differ in the elderly?

Usually in the elderly the complaints are milder but last longer. Digestion slows down, chronic diseases accumulate, and the diet often becomes monotonous, so the composition of the microflora changes gradually. Weight loss, weakness and loss of appetite are cause for concern: with these, a visit to the doctor should not be postponed.

How can you tell that the cause is not the microflora but something else?

Usually this cannot be determined from sensations alone; a doctor's assessment is needed. Changes in composition are often secondary and accompany an infection, bowel disease or medication, so the specialist looks for the underlying condition rather than the label itself. The duration of the complaints, their link with food and past illnesses all help.

Can you do sport with such complaints?

Yes, moderate exercise usually does not interfere and helps digestion. Heavy strength training and sudden exertion on a full stomach can increase discomfort and bloating. If pain or marked weakness appears during exercise, the load should be reduced and this discussed with a doctor.

Do work and stress affect the condition?

Yes, constant tension and an irregular routine affect the work of the bowel. Shift work, night duty and eating on the run disrupt the usual rhythm of meals, and the complaints worsen. If the discomfort recurs after every hard week, it is worth reviewing your daily routine.

How are things during pregnancy?

Usually the complaints during this period are related to the body's readjustment rather than to a separate disease. Bloating and irregular stools are often explained by changes in diet and hormonal levels. Any unpleasant sensations during pregnancy are discussed with the doctor who is managing the woman, and not corrected on your own.

What complications are possible if nothing is done?

An altered composition of the microflora is not dangerous in itself. The problem is that the underlying disease remains unattended, and it may gradually progress. Then pain, weight loss and weakness increase, so it is not worth delaying the examination.

When should you seek help urgently, without waiting for an appointment?

Urgently — with severe abdominal pain, repeated vomiting, blood in the stool, a high temperature or signs of dehydration. These conditions are not related to ordinary discomfort and require emergency care. In such cases, one does not wait for a scheduled visit but calls a doctor.

How long do you need to be followed up by a doctor?

Usually the duration of follow-up is determined by the attending doctor, and it depends on the cause of the complaints. If the changes are secondary, the condition levels out as the underlying disease is corrected. In chronic digestive diseases, follow-up is continuous, even when you feel well.

Do you need to change your diet forever?

No, permanent restrictions are not always needed. The diet is reviewed together with the doctor, removing foods that maintain the unpleasant symptoms and reintroducing them gradually. A varied diet with plant foods remains the foundation, and strict restrictions without reason only do harm.