{"id":23256,"date":"2025-06-12T18:08:16","date_gmt":"2025-06-12T16:08:16","guid":{"rendered":"https:\/\/ailin.es\/?p=23256"},"modified":"2026-02-17T18:08:16","modified_gmt":"2026-02-17T17:08:16","slug":"most-common-sibo-symptoms","status":"publish","type":"post","link":"https:\/\/ailin.es\/en\/blog\/sintomas-sibo-mas-comunes\/","title":{"rendered":"5 symptoms that could indicate SIBO (and you didn't know it)"},"content":{"rendered":"

Many people suffer from digestive symptoms without knowing what causes them. Bloating, gas, abdominal discomfort or changes in bowel transit can affect quality of life, but in many cases the source is unclear.<\/p>\n

SIBO may be behind these complaints, but it remains a rare and poorly understood diagnosis. As a result, many people live with these symptoms for years without receiving an explanation or adequate treatment.<\/p>\n

Recognising the most common signs is essential to seek a correct diagnosis and start improving digestive health. In this article we present five common signs that could indicate the presence of SIBO. Being aware of these clues is the first step to regaining your well-being and quality of life.<\/p>\n

Why is SIBO so under-diagnosed?<\/h2>\n

We have already explained in this article<\/a>, SIBO is a bacterial overgrowth in the small intestine that disrupts the natural balance of the microbiota and affects digestion and nutrient absorption. This imbalance can cause uncomfortable digestive symptoms and affect your overall well-being.<\/p>\n

Among the most common causes are prolonged use of antibiotics, chronic stress, changes in the gut microbiota (dysbiosis), abdominal surgery and certain dietary habits.<\/p>\n

Although SIBO is more common than people think, it is often overlooked and under-diagnosed, resulting in many people living with discomfort for a long time without a clear diagnosis.<\/p>\n

5 symptoms that could be warning you that you have SIBO<\/h2>\n

1. Bloating after eating<\/h3>\n

It is common to feel a \u201cbloated\u201d sensation in the abdomen, even if you have eaten a small amount of food. This happens because overgrowing bacteria ferment some foods, especially certain vegetables, legumes and fruits, which are more difficult to digest and produce gas that inflames the intestine.<\/p>\n

2. Constant, foul-smelling fumes<\/h3>\n

Excessive bacterial fermentation generates gas that not only causes discomfort, but also a strong, unpleasant odour. Many people confuse this symptom with irritable bowel syndrome (IBS), but it is important to identify the source in order to get the right treatment.<\/p>\n

3. Heavy and slow digestion<\/h3>\n

Digestion becomes more difficult and prolonged, as if the food is not moving properly through the digestive system. This slowness causes an immediate feeling of fullness, even after eating small amounts. This response is due to the disruption of the digestive process caused by bacterial imbalance, which affects intestinal motility and nutrient absorption.<\/p>\n

4. Mental fog and fatigue<\/h3>\n

After eating, you may find it difficult to concentrate or think clearly, and you may experience a feeling of fatigue. These symptoms are often mistaken for anxiety or stress, but in the case of SIBO they are related to malabsorption of nutrients and inflammation caused by bacterial imbalance.<\/p>\n

5. Chronic diarrhoea or constipation<\/h3>\n

Changes in bowel rhythm, whether diarrhoea, constipation or alternating between the two, are common. These symptoms often persist even with specific diets or probiotics, because until the bacterial problem is treated, the gut does not return to normal functioning.<\/p>\n

How do you know if you really have SIBO?<\/h2>\n

SIBO can go unnoticed for a long time, as its symptoms are often confused with other digestive disorders. This is why an accurate diagnosis is essential. The most commonly used test for detecting SIBO is the BREATH TEST<\/strong><\/a>, which measures the levels of hydrogen and methane produced by bacteria fermenting certain sugars in the small intestine.<\/p>\n

It is a non-invasive, simple and safe test that can identify bacterial overgrowth and guide the appropriate treatment. Early detection can make a difference to your quality of life.<\/p>\n

<\/p>\n

Conclusion - Listening to your symptoms can change your health<\/h2>\n

If you've been living with digestive discomfort for a while, it's not an exaggeration or a coincidence. Symptoms are signals your body sends out to let you know that something is wrong. And although they are sometimes downplayed or blamed on stress, they deserve to be heard.<\/p>\n

Remember: it is not your fault that you feel this way. Validating what is happening to you is the first step to finding answers and regaining your wellbeing. Knowing about SIBO and understanding that there may be a cause behind what you are feeling can completely change the way you take care of your digestive health.<\/p>\n\n

Bibliographical references<\/h2>\n
    \n
  1. Sorathia SJ, Chippa V, Rivas JM. Small intestinal bacterial overgrowth. In: StatPearls. Treasure Island (FL): StatPearls Publishing; 2025.<\/li>\n
  2. Rao SSC, Bhagatwala J. Small intestinal bacterial overgrowth: Clinical features and therapeutic management. Clin Transl Gastroenterol. 2019;10(10):e00078. Disponible en: http:\/\/dx.doi.org\/10.14309\/ctg.0000000000000078<\/li>\n
  3. Malik Z. Bacterial overgrowth in the small intestine. MSD Practitioner's Manual. 2023. Available at: https:\/\/www.msdmanuals.com\/es\/professional\/trastornos-gastrointestinales\/s\u00edndromes-de-malabsorci\u00f3n\/sobrecrecimiento-bacteriano-en-el-intestino-delgado<\/li>\n
  4. Khoshini R, Dai S-C, Lezcano S, Pimentel M. A systematic review of diagnostic tests for small intestinal bacterial overgrowth. Dig Dis Sci. 2008;53(6):1443-54. Available at: http:\/\/dx.doi.org\/10.1007\/s10620-007-0065-1<\/li>\n<\/ol>\n

     <\/p>","protected":false},"excerpt":{"rendered":"

    Muchas personas sufren s\u00edntomas digestivos sin saber a qu\u00e9 se deben. Hinchaz\u00f3n, gases, molestias abdominales o cambios en el tr\u00e1nsito intestinal pueden afectar la calidad de vida, pero en muchos casos el origen no est\u00e1 claro. El SIBO puede estar detr\u00e1s de estas molestias, aunque sigue siendo un diagn\u00f3stico poco frecuente y poco conocido. Por […]<\/p>\n","protected":false},"author":11,"featured_media":23257,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[24],"tags":[],"class_list":["post-23256","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-sin-categoria"],"acf":[],"yoast_head":"\n5 S\u00edntomas que podr\u00edan indicar SIBO (y no lo sab\u00edas)<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/ailin.es\/en\/blog\/most-common-sibo-symptoms\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"5 S\u00edntomas que podr\u00edan indicar SIBO (y no lo sab\u00edas)\" \/>\n<meta property=\"og:description\" content=\"Muchas personas sufren s\u00edntomas digestivos sin saber a qu\u00e9 se deben. Hinchaz\u00f3n, gases, molestias abdominales o cambios en el tr\u00e1nsito intestinal pueden afectar la calidad de vida, pero en muchos casos el origen no est\u00e1 claro. El SIBO puede estar detr\u00e1s de estas molestias, aunque sigue siendo un diagn\u00f3stico poco frecuente y poco conocido. 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