Diarrhea is a common condition that almost everyone deals with at some point in their life, but it can be difficult to know when it’s just a passing stomach condition and when it’s worth getting checked out. If you’re trying to figure out when to see a doctor for diarrhea, the short version is reassuring: diarrhea often clears up on its own within a few days.
However, the bottom line is diarrhea shouldn’t be ignored if it persists, leads to dehydration, or comes with more concerning symptoms.
Key takeaways
- Most cases of diarrhea are short-lived and improve within a few days without treatment.
- In adults, diarrhea lasting more than two days without improvement is worth a doctor visit.
- Dehydration is one of the biggest reasons diarrhea becomes serious, so don’t wait it out if you notice the signs.
- Bloody or black stools, severe pain, high fever, or major weakness mean you should be seen sooner or seek emergency care.
- Some groups, such as people who are pregnant, over 65, or immunocompromised, should be seen earlier.
When should you see a doctor for diarrhea?
You should see a doctor for diarrhea when it lasts more than two days without improvement, or comes with dehydration, severe abdominal or rectal pain, bloody or black stools, or fever.
Most of the time, diarrhea resolves on its own. But when it sticks around or shows up alongside other symptoms, that’s your cue to get it looked at.
A good first step for non-emergency cases is to find a primary care doctor near you. If symptoms are more time-sensitive, you can also find urgent care near you for more immediate care.
How long is too long for diarrhea?
Many cases of diarrhea are short-lived and improve within a few days, so a couple of days of loose stools usually isn’t cause for alarm. The National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK) describes diarrhea as loose, watery stools three or more times a day, or more often than is normal for you.
When it lasts longer, the timeline starts to matter more. Diarrhea can generally be grouped into three tiers:
- Acute: 2 days to 2 weeks
- Persistent: 2 to 4 weeks
- Chronic: more than 4 weeks
For adults, diarrhea that lasts more than two days without improvement deserves medical attention. Ongoing or recurring diarrhea can sometimes point to a larger issue, which is worth discussing with a doctor.
What diarrhea symptoms mean you should get checked sooner?
Certain symptoms increase the urgency and mean you shouldn’t wait the full two days. Get checked sooner if you notice:
- Signs of dehydration (more on those below)
- Severe abdominal or rectal pain
- Bloody or black stools
- Fever
- Frequent vomiting that makes it difficult to keep fluids down
- Diarrhea that’s more severe than usual for you
- Six or more loose stools in a day
If any of these sound familiar, you can book a primary care visit or find urgent care and compare real-time availability so you can be seen quickly.
What are the signs of dehydration from diarrhea?
The signs of dehydration from diarrhea include extreme thirst or a dry mouth, urinating less than usual, dark-colored urine, feeling tired, dizzy, or lightheaded; and severe weakness.
Dehydration happens when your body loses more fluid than it’s taking in, which is easy to do during a bout of diarrhea.
This is one of the most important reasons not to wait too long before seeing medical care. If you’re noticing these signs, especially if you also can’t keep fluids down, it’s time to get care.
When is diarrhea an emergency?
Diarrhea becomes an emergency when it causes severe dehydration or comes with severe weakness, major dizziness or lightheadedness, confusion, very low energy, or serious abdominal pain. In these situations, it is recommended to seek emergency care right away.
Bloody or black stools should also be treated as more urgent and checked promptly.
Severe diarrhea can become dangerous when you’re losing fluid faster than you can replace it by mouth. When in doubt about a true emergency, it’s safer to err on the side of caution and get seen immediately.
When can you treat diarrhea at home?
Home care is often reasonable when diarrhea is short-lived, not severe, and not paired with dehydration or other concerning symptoms. There’s no need to overreact to mild diarrhea that’s already improving.
Practical steps you can take at home:
- Replacing lost fluids and electrolytes by drinking water, broth, or rehydration drinks
- Resting while your body recovers
- Easing back into your normal diet as your appetite returns
If symptoms stall, worsen, or new red flags appear, that’s your signal to shift from watching to acting.
Who should seek care sooner for diarrhea?
Some people should check in with a doctor sooner rather than later, even if symptoms seem mild. This includes people who are:
- Pregnant
- Over 65 years of age
- Currently taking antibiotics
- Living with weakened immune systems.
For these groups of people, diarrhea can carry a higher risk of complications. If you fall into one of these categories, it’s reasonable to reach out earlier and not wait the full two days.
What kind of doctor should you see for diarrhea?
Visiting a primary care doctor is a reasonable first step for diarrhea that’s bothersome but not an emergency. A primary care doctor can evaluate your symptoms, suggest next steps, and order tests if needed.
Seek urgent care when symptoms feel time-sensitive and you want to be seen the same day.
For diarrhea that’s ongoing, recurrent, or tied to a long-term digestive condition, a gastroenterologist (a doctor who specializes in the digestive system) will provide a more thorough evaluation, often recommended after a primary care visit.
How do you find the right doctor for diarrhea?
A few quick questions can point you toward the right type of visit:
- How long has the diarrhea been going on?
- Are you noticing signs of dehydration?
- Are there red flags like fever, blood in the stool, or severe pain?
- Do you want the soonest available appointment?
- Do you need primary care, urgent care, or a GI specialist?
- Would you prefer an in-person or virtual visit?
- Does the provider take your insurance?
On Zocdoc, you can filter by insurance, read verified patient reviews, see real-time availability, and book online. When you’re ready, you can book primary care, find urgent care, or search for gastroenterologists.
New to the platform? Here’s how Zocdoc works for patients.
Conclusion
Many cases of diarrhea get better on their own, but diarrhea that lasts too long, causes dehydration, or comes with more serious symptoms is worth getting checked out by a medical professional.
The next step depends on both how long the diarrhea has lasted and what other symptoms are happening alongside it.
If you’re ready, you can book a primary care visit or find urgent care near you and choose a time that works for you.
FAQs
How long should diarrhea last before I see a doctor? For adults, diarrhea lasting more than two days without improvement is generally a reason to see a doctor. If you also notice dehydration or other red-flag symptoms, don’t wait the full two days. Get seen as soon as possible.
When should I worry about diarrhea?
Seek urgent care if diarrhea comes with dehydration, severe abdominal or rectal pain, bloody or black stools, fever, or frequent vomiting. Six or more loose stools in a day is also a reason to get evaluated.
What are the signs of dehydration from diarrhea?
Signs include extreme thirst, dry mouth, urinating less than usual, dark urine, feeling tired or dizzy, and severe weakness. Dehydration is one of the most important reasons not to wait too long to get care.
When should I go to urgent care for diarrhea?
You should go to urgent care when symptoms feel time-sensitive, and you want to be seen the same day, but you don’t have emergency-level warning signs. Severe dehydration, confusion, major dizziness, or serious abdominal pain warrant emergency care instead.
Is it normal for diarrhea to last a couple of days?
Yes, most diarrhea is short-lived and often lasts no more than a few days. If it stretches past two days without improving, or comes with concerning symptoms, that’s when it’s worth getting checked.
The information in this article is provided for general informational purposes only and should not be relied on as medical advice. It is not intended as, and Zocdoc does not provide, medical advice, diagnosis or treatment. Zocdoc does not recommend any specific provider. Find one you’ll love on Zocdoc today.