Key takeaways
- Inflammatory bowel disease (IBD) flares can be unpredictable, but avoiding common triggers like stress, poor sleep, smoking, and certain dietary factors may help lower your risk of future flare-ups.
- To further reduce the frequency and severity of flares, take medications exactly as prescribed, follow supportive gut-friendly habits, and let your doctor know if symptoms change or worsen.
- If a flare isn’t improving or feels more severe than usual, contact your doctor to discuss next steps and adjust your treatment plan as needed.
Inflammatory bowel disease (IBD), which includes Crohn’s disease and ulcerative colitis, is an autoimmune condition that primarily affects the gastrointestinal tract. It’s characterized by periods of remission and symptom flare-ups.
IBD flares are largely unpredictable. What triggers a flare can also vary from person to person. Yet, some IBD triggers are more common than others,
- stress
- poor sleep quality
- smoking
- diet
It’s possible to effectively manage IBD and reduce flare frequency by establishing an individualized care plan, following your prescribed treatment, and scheduling routine monitoring with your doctor.
IBD and irritable bowel syndrome (IBS) are two different diseases with overlapping and distinct symptoms.
IBD is an inflammatory condition of the gut. IBS occurs without inflammation, and the gut appears normal under testing.
Because both can cause abdominal pain, bloating, and changes in bowel habits, it’s often difficult to distinguish between IBS and a mild IBD flare. However, more severe IBD may come with additional symptoms, like blood in the stool, unintended weight loss, or fever.
Laboratory testing, imaging, or endoscopic evaluation is often needed to determine the difference between these two conditions.
Flares can feel different in Crohn’s disease and ulcerative colitis because the pattern and location of inflammation vary.
In ulcerative colitis, inflammation is limited to the colon and often causes:
- bloody diarrhea
- urgency
- lower abdominal cramps
In Crohn’s disease, inflammation can involve the colon but may also affect any other part of the gastrointestinal tract. This can lead to additional symptoms, such as:
- nonbloody diarrhea
- perianal pain
- mouth sores
- upper abdominal pain
- nausea
- vomiting
- unintended weight loss
The inflammation in Crohn’s disease can also affect deeper layers of tissue than ulcerative colitis, so symptoms can be more intense.
IBD flares are usually treated with prescription medications to help reduce inflammation and control symptoms. Treatment may include the following:
- aminosalicylates are often prescribed for mild flares
- corticosteroids may be needed for more moderate to severe flares
- biologics can also be given for more moderate to severe illness
- JAK inhibitors may be needed if you don’t respond to traditional treatments
- S1P modulators can also be prescribed if traditional therapies aren’t working
- over-the-counter options, like antidiarrheals or acetaminophen, may help ease specific symptoms
Medication alone often cannot address all IBD symptoms, especially those driven by diet, stress, or functional gut changes. Even when inflammation is controlled, symptoms may persist due to lifestyle or psychosocial factors.
Supportive strategies are therefore essential for easing IBD symptoms, and may include:
- making individualized dietary adjustments
- managing stress
- prioritizing sleep
- staying active
- paying attention to mental health
- identifying personal triggers
- maintaining good hydration
During a flare, it can also help to:
A collaborative, holistic approach that combines medical care with supportive lifestyle strategies is often necessary to fully manage IBD symptoms. Recognizing personal triggers and working with your healthcare provider or dietitian can help tailor these strategies during flares.
The duration of IBD flares can vary widely from person to person and depends on disease severity and location.
In general, mild flares may last a few days, while more severe flares can last a week or longer. However, some flares can continue indefinitely if left untreated.
Contact your doctor if flare symptoms are persistent, worsening, or different from your usual pattern. IBD symptoms that require urgent care include:
- ongoing diarrhea
- increased abdominal pain
- blood in the stool
- fatigue
- unintended weight loss
An IBD flare becomes a medical emergency if you have:
- severe abdominal pain
- high fever
- dehydration
- inability to keep fluids down
- significant bleeding
- black stools
- confusion
- signs of bowel obstruction such as severe bloating or vomiting
In these situations, contact your doctor immediately or go to the nearest emergency room.
How often flares occur is important for planning long-term IBD treatment.
If you experience frequent flares, you may need a reassessment of your disease severity and other medications, as well as risk factors. You may require stronger or more consistent therapy to help control inflammation and prevent complications.
If you have milder or less frequent flares, you may be able to manage with standard maintenance therapy and regular check-ups.
Flare frequency also helps guide decisions about diet, other lifestyle changes, and monitoring. This allows your doctor to adjust treatment and support a holistic approach to maintaining overall gut health and well-being.
While IBD flares cannot always be completely prevented, several strategies can help reduce their frequency and severity. That includes:
- taking medications as prescribed
- attending regular follow-ups
- identifying and avoiding personal IBD triggers
- maintaining a balanced diet
- managing stress
- prioritizing sleep
- staying active
Early recognition of symptoms and prompt communication with your healthcare team are most important for preventing flares from worsening.
Dr. Qin Rao is an ABMS board certified internal medicine physician specializing in gastroenterology and hepatology. He is currently a practicing physician at Manhattan Gastroenterology in New York City, specializing in irritable bowel syndrome, inflammatory bowel disease, dyspepsia, and hemorrhoid treatment.



