Loose, watery stools. Review possible causes, self-care and warning signs that need medical attention.
About Diarrhea
Loose, watery stools
Urgency category: normal. Common clinician to consult: Gastroenterologist.
Diarrhea is characterized by loose, watery stools that occur more frequently than usual. It can be acute (short-term) or chronic (long-term).
Acute diarrhea is usually caused by infections, food poisoning, or medications. Chronic diarrhea may indicate underlying conditions.
Most cases of acute diarrhea resolve on their own, but dehydration can be a serious concern, especially in children and older adults.
Editorial update (28 September 2026): structured medical content awaits clinical reviewer sign-off.
How to interpret this symptom
Digestive symptoms can reflect diet, infection, medicines, inflammation, stress or another cause. Pattern, duration, hydration and warning signs help determine urgency.
A clinician may ask about pain, bowel habits, vomiting, blood, weight change, diet, medicines and exposures. Examination and stool, blood or imaging tests may be selected.
When diarrhea may need urgent attention
This symptom is generally suitable for non-emergency review, but severity and associated symptoms can change urgency. Seek urgent care for vomiting blood, black stool, severe or worsening abdominal pain, persistent vomiting, marked swelling, inability to keep fluids down, dehydration, high fever, confusion or severe weakness.
Possible causes
- Viral or bacterial infections
- Food poisoning
- Medications
- Food intolerances
- IBS
- Inflammatory bowel disease
Self-care
- Stay hydrated with fluids
- Eat bland foods
- Avoid dairy and fatty foods
- Use oral rehydration solutions
- Rest and avoid strenuous activity
Self-care limits
Hydration, gentle eating and avoiding irritants may help mild symptoms. Do not keep using home remedies when pain is severe, blood is present, dehydration is developing or symptoms persist.
When to seek medical help
- Diarrhea lasting more than 2 days
- Severe abdominal pain
- Bloody or black stools
- Signs of dehydration
Preparing for a consultation
- Bowel or vomiting pattern and any blood or color change.
- Foods, medicines, travel or exposures that precede symptoms.
- Hydration, fever, pain location and weight change.
- Current medicines and previous digestive tests.
Questions worth asking
- What are the most likely and most important causes of Diarrhea?
- Which warning signs should make me seek urgent or emergency care?
- Do I need an examination, tests or referral now?
- Which self-care measures are safe for me, and which should I avoid?
- Is Gastroenterologist the right specialist for this pattern?
- When should I expect improvement, and when should I return or seek review?
Related conditions
Related clinicians
Medical information limitations
This page summarizes symptom information and cannot confirm a cause or choose treatment. Seek urgent care for severe or rapidly worsening symptoms.
Common questions
What does Diarrhea mean?
Loose, watery stools A symptom is a reported experience or sign; it does not identify one diagnosis by itself.
What can cause Diarrhea?
Possible contributors listed include Viral or bacterial infections, Food poisoning, Medications, Food intolerances, IBS. A cause cannot be confirmed without assessment.
When is Diarrhea urgent?
This symptom is generally suitable for non-emergency review, but severity and associated symptoms can change urgency. Seek urgent care for vomiting blood, black stool, severe or worsening abdominal pain, persistent vomiting, marked swelling, inability to keep fluids down, dehydration, high fever, confusion or severe weakness. Diarrhea lasting more than 2 days. Severe abdominal pain. Bloody or black stools
What can I safely do at home?
General measures listed include Stay hydrated with fluids, Eat bland foods, Avoid dairy and fatty foods, Use oral rehydration solutions. These are not a substitute for medical assessment when symptoms are severe, persistent or concerning. Hydration, gentle eating and avoiding irritants may help mild symptoms. Do not keep using home remedies when pain is severe, blood is present, dehydration is developing or symptoms persist.
Who should evaluate Diarrhea?
The listed clinician type is Gastroenterologist. A general clinician can often assess the symptom first and refer you if specialist care is needed.
How should I prepare for a consultation?
Bowel or vomiting pattern and any blood or color change. Foods, medicines, travel or exposures that precede symptoms. Hydration, fever, pain location and weight change. Current medicines and previous digestive tests. Bring medicines, recent reports and relevant photographs or readings where useful.
General information only. If symptoms are severe, new, persistent, or worrying, seek advice from a qualified clinician.