Bacterial overgrowth in the small intestine (SIBO) commonly causes symptoms like abdominal bloating, gas (flatulence), diarrhea (sometimes fatty/oily), crampy abdominal pain, nausea, and an uncomfortable feeling of fullness after eating. More severe cases can lead to fatigue, unintentional weight loss, malnutrition, and deficiencies in vitamins (like B12, D) and minerals due to poor nutrient absorption.
Signs and symptoms of small intestinal bacterial overgrowth (SIBO) often include:
Antibiotic therapy
A short course of antibiotics often significantly reduces the number of abnormal bacteria. But bacteria can return when the antibiotic is discontinued, so treatment may need to be long term.
Bacterial gastroenteritis is a digestive problem caused by bacteria. Symptoms include nausea, vomiting, fever, diarrhea, abdominal cramping, and pain.
During this die-off time period, you are susceptible to experiencing temporary discomfort. Some of the common symptoms experienced during the die-off period are increased bloating and abdominal discomfort, mild fatigue, muscle aches or even a low-grade fever.
Diarrhea is common; other symptoms include bleeding, bloating, nausea, vomiting, abdominal pain, and even features of complete abdominal obstruction. Some infections have characteristic features.
Symptoms of both ulcerative colitis and Crohn's disease usually include belly pain, diarrhea, rectal bleeding, extreme tiredness and weight loss. For some people, IBD is only a mild illness. But for others, it's a condition that causes disability and can lead to life-threatening complications.
To try to get rid of SIBO, some healthcare providers recommend a short-term elimination diet. That means temporarily restricting all carbohydrates from what you eat to starve the bacteria. The more severe version of this is the elemental diet for SIBO, a liquid eating plan of pre-digested formulas.
What are the symptoms of bowel infection?
The treatment for small bowel conditions will be different based on what's causing them. However, part of treatment might include lifestyle changes such as nutrition and diet, stress reduction, or working with a mental health professional. The treatment for celiac disease is avoiding gluten.
Enteritis is most often caused by eating or drinking things that are contaminated with bacteria or viruses. The germs settle in the small intestine and cause inflammation and swelling. Enteritis may also be caused by: An autoimmune condition, such as Crohn disease.
If you have SIBO, you may want to consider reducing or avoiding the following high-FODMAP foods:
However, many small bowel diseases can cause similar symptoms, including:
For your information, enteritis is part of gastroenteritis (stomach flu), which is the inflammation that occurs in the small intestine and stomach. This condition generally does not require special medical treatment. In fact, in mild cases, enteritis can heal on its own.
Small bowel disorders include Crohn's disease, coeliac disease, bacterial overgrowth and iatrogenic causes such as short bowel syndrome and radiation enteritis. Other presentations are central abdominal pain, anaemia and uncommonly gastrointestinal bleeding.
Common symptoms of bacterial infection include:
Antibiotic treatment may shorten illness duration and shedding but does not prevent complications. Most mild infections will recover without antibiotics. Moderate to severe cases should be treated with antibiotics. Ampicillin is preferred for drug-sensitive strains.
Consult your health care provider if you notice unusual or unexplained changes in your bowel movements, such as:
Symptoms of SIBO may include:
Is SIBO curable? Treatment options for SIBO are effective, but the symptoms can recur. Being vigilant by continuing to treat the underlying cause may help reduce or prevent the recurrence of SIBO.
Apple cider vinegar for SIBO
While it may support gastric acidity and help some individuals digest proteins more effectively, there is no strong evidence that it directly combats bacterial overgrowth.
The main symptoms of ulcerative colitis are:
What are the symptoms of inflammatory bowel disease?
7 Common Symptoms of Irritable Bowel Syndrome (IBS)