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Diarrhea Explained

Diarrhea is when your bowel movements become loose, watery, or more frequent than usual. It can be mild and brief, or it can last longer and interfere with your daily life. Short-term diarrhea is often caused by infections, food intolerances, or medication side effects. Longer-lasting diarrhea can be related to irritable bowel syndrome (IBS), inflammatory bowel disease (IBD), celiac disease, problems absorbing nutrients, or other underlying conditions. When diarrhea is severe, persistent, or associated with weight loss, blood, or dehydration, it deserves careful evaluation by a digestive specialist.

Síntomas

Diarrhea can show up as frequent, urgent trips to the bathroom, watery or mushy stools, abdominal cramping, and sometimes nausea, bloating, or gas. If it continues or is severe, you may also feel weak, lightheaded, or notice signs of dehydration.

Los síntomas incluyen:
Loose, watery, or mushy stools
More frequent bowel movements than usual
Sudden urgency to get to the bathroom
Cramping or aching in the lower abdomen
Bloating, gas, or rumbling sounds in the belly
Nausea or occasional vomiting
Feeling tired, weak, or lightheaded
Dry mouth, dark urine, or dizziness (possible dehydration)

Cuándo llamar

Call our office if diarrhea lasts more than 2–3 days, keeps coming back, or you notice mucus or small amounts of blood. Also contact us if you’re losing weight, have low appetite or unusual fatigue, symptoms wake you at night or disrupt daily life, or you have a digestive condition and your symptoms change or worsen.

Call 911 or go to the nearest emergency room if you have signs of severe dehydration (very little urine, dizziness, confusion, very dry mouth, or fainting). Seek emergency care if you have heavy blood in the stool or black tarry stools, severe or worsening abdominal pain/swelling, or a high fever with diarrhea and you feel very unwell.

Evaluación y pruebas
Manejo y tratamiento

We start by asking how long the diarrhea has been going on, how often you are having stools, and whether you’ve noticed blood, mucus, weight loss, fever, or nighttime symptoms. We also review your diet, medications, recent antibiotic use, travel, and any personal or family history of digestive disease.

If needed, testing may include blood work, stool studies for infection or inflammation, and sometimes a colonoscopy or imaging if there are red-flag signs or long-standing symptoms. The goal is to determine whether the diarrhea is likely from an infection, IBS, IBD, malabsorption, or another cause so we can tailor treatment.

Review of duration, frequency, and pattern of diarrhea
Questions about recent travel, illness, antibiotics, and diet triggers
Screening for blood in stool, weight loss, fever, and nighttime symptoms
Blood tests to check for dehydration, anemia, or inflammation
Stool tests for infection, inflammation, or malabsorption when indicated
Colonoscopy or imaging if symptoms are chronic or there are red-flag features

Treatment depends on the cause and severity. For many people with short-term diarrhea, the focus is on preventing dehydration, using simple diet changes, and letting the illness run its course. When diarrhea is more severe or long-lasting, we may recommend medications to calm the bowel, treat infections, reduce inflammation, or address conditions like IBS or IBD. We’ll also look for medication side effects or food intolerances that can be improved with adjustments.

Replacing fluids and electrolytes to prevent or treat dehydration
Short-term diet changes such as smaller meals and easy-to-digest foods
Avoiding foods, drinks, or medications that worsen symptoms
Using antidiarrheal or antispasmodic medicines when appropriate
Treating infections, inflammatory bowel disease, or other underlying causes
Planning follow-up if symptoms become chronic or recur frequently
Esta información tiene fines meramente informativos y no sustituye el consejo médico. Siga siempre las instrucciones específicas que le haya dado su equipo sanitario y póngase en contacto con un profesional sanitario si tiene alguna duda o si aparecen nuevos síntomas o los que ya tiene empeoran.

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