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Diarrhea is a digestive condition that causes loose or watery stools. Many people experience diarrhea at some point. These bouts are often acute and resolve in a couple of days with no complications. Other people, however, live with diarrhea that persists for more than
Acute, or short-term, diarrhea usually isn’t serious. But chronic loose, watery stools can lead to problems if left untreated. So it’s important to understand the cause of this type of diarrhea and treat any underlying condition.
The main symptom of chronic diarrhea is loose or watery stools that persist for weeks. These stools may or may not be accompanied by a sense of urgency. You may have other symptoms as well, such as:
- abdominal cramps
Chronic diarrhea is sometimes caused by an underlying medical condition. See your doctor if diarrhea doesn’t respond to at-home care. If you’re concerned about your diarrhea and don’t already have a primary care provider, you can view doctors in your area through the Healthline FindCare tool.
During your appointment, your doctor may conduct a physical examination and ask about your symptoms. For example, how often do you have loose stools? Do you have any other symptoms? Is there a personal or family history of digestive problems? Based on your physical exam and your symptoms, your doctor may order a complete blood count or a stool sample to check for infections or inflammation.
A stool sample, which examines feces, may reveal elevated white blood cells. This can be a sign of inflammation in your body or bacteria or parasites in your stool. The latter can also cause loose stools. This sample may also reveal fat in your stool, which can indicate chronic pancreatitis (damage to the pancreas from prolonged inflammation) or celiac disease.
Your diet can also play a role in chronic diarrhea. Certain ingredients speed up the rate of digestion, causing food to pass rapidly through the colon. Common culprits include milk and artificial sweeteners (sorbitol and fructose).
Other causes of chronic diarrhea may include:
- medications — NSAIDs, antibiotics, antacids
- gluten insensitivity
- alcohol abuse
If a blood test or a stool sample can’t identify the cause of diarrhea, your doctor may suggest an ultrasound or CT scan of your abdomen, but only if you have other symptoms like pain or bloody stools. These imaging tests will check your organs for problems. Your doctor may also recommend a colonoscopy to examine your bowels for abnormalities. This tool can diagnose problems with the lining of your intestines, pancreas, and colon.
Sometimes, the cause of chronic diarrhea is unknown. If diagnostic tests don’t reveal an abnormality, your doctor may attribute chronic diarrhea to irritable bowel syndrome (IBS).
This condition affects the large intestines and causes a variety of symptoms like diarrhea, constipation, bloating, nausea, and abdominal pain. IBS can be chronic, but it doesn’t damage the large intestines.
Anti-diarrheal medications can relieve diarrhea, but these medications aren’t recommended as a long-term therapy.
Treatment for chronic diarrhea depends on the underlying cause. For example, if you’re diagnosed with a medical condition like ulcerative colitis, Crohn’s disease, pancreatitis, or celiac disease, your doctor will discuss treatment options with you and recommend the best course of action. Treatment might include prescription medications like an immunosuppressant or a corticosteroid.
Diarrhea may improve as your health improves.
Additional treatment options for chronic diarrhea include:
Lifestyle and diet
Keep a food journal to help determine whether diet is an underlying factor in chronic diarrhea. Record all your meals and snacks, and make a note of any worsening of symptoms.
After a few weeks, you may be able to identify possible trigger foods. If so, eliminate these foods from your diet to see if your symptoms improve. For example, diarrhea may stop or significantly improve after stopping your intake of gluten, artificial sweeteners, or dairy products. Or your condition may improve after removing certain vegetables, fruits, and beans from your diet.
Lifestyle changes to help resolve chronic diarrhea include:
- avoiding caffeine and alcoholic beverages
- eating low fiber foods
- drinking clear fluids to prevent dehydration
- controlling food portions to avoid overeating
If bacteria or a parasite causes chronic diarrhea, your doctor may prescribe an antibiotic. Prescription medications containing codeine may also provide relief because they increase the time it takes stools to pass through the digestive tract, resulting in bulkier stools. However, there’s the risk of addiction with these medications, so your doctor may not recommend codeine as a long-term therapy.
Over-the-counter medications such as bismuth (Pepto-Bismol) and loperamide (Imodium) also slow the transit of stool, but they should only be taken on a short-term basis. Talk to your doctor before using these medications to treat chronic diarrhea.
Home remedies and natural remedies
Chronic diarrhea may develop after taking a prescription medication such as an antibiotic. Talk to your doctor about alternative drugs. If one isn’t available, incorporate probiotics into your diet to restore stool bulk. These are available in yogurt and capsule form.
Fiber supplements are associated with relieving constipation. But certain fiber supplements can also relieve chronic diarrhea because of its water-holding effect. Taking psyllium (Metamucil) on a daily basis can produce bulkier stools and lessen or eliminate diarrhea caused by IBS or medication.
Chronic diarrhea caused by an underlying medical condition isn’t always preventable. But you can prevent chronic diarrhea due to infection by taking steps to keep your food and water supply clean. For example:
- Drink from a clean water source or filter your water.
- Thoroughly clean meat before cooking.
- Cook meat thoroughly.
- Wash your hands after handling food.
- Clean kitchen surfaces to prevent contamination.
- Wash fruits and vegetables before consuming them.
- Wash your hands after using the bathroom, changing a diaper, or attending to a sick person.
Acute diarrhea can be harmless. But with chronic diarrhea, there’s the risk of dehydration due to loss of fluid. Dehydration is when your body doesn’t have enough water. This can be life-threatening, so drink plenty of fluids. This includes water, broth, and unsweetened and decaffeinated tea. Signs of dehydration include:
- dark urine
- excessive thirst
See a doctor if you show signs of dehydration.
The outlook for chronic diarrhea depends on the cause. If you’re able to treat an inflammatory bowel disorder, infection, or other digestive problem, your stools should gradually return to normal. If you don’t have a medical condition, keeping a food journal, watching your diet, and making lifestyle changes may also provide relief. The important thing is that you don’t ignore the problem. The sooner you speak with your doctor, the sooner you can get relief.