Crohn’s Disease Flare-Ups: What They Feel Like and How to Manage Them.

Living with Crohn’s disease can feel like a rollercoaster. Some days, your symptoms may be quiet or barely noticeable. Other days, they can come back suddenly and hit hard. These periods are called flare-ups, and while they’re a normal part of life with Crohn’s, they can still be upsetting and disruptive.

The good news? Knowing what to expect and how to prepare can help you feel more in control. Whether you’re newly diagnosed or have been living with Crohn’s for years, here’s what you need to know about flare-ups and what you can do to manage them.
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What is a Crohn’s flare-up?

A Crohn’s flare-up is a time when your symptoms return or get worse after being in remission (a period when symptoms are under control). Flare-ups can come on suddenly or build slowly over time. Some may last just a few days, while others may continue longer and require changes to your treatment plan.

Flare-ups are a common part of managing Crohn’s. They don’t always mean your treatment isn’t working. They may simply mean your body needs a little extra help to calm the inflammation again.
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What does a flare-up feel like?

Everyone’s experience with Crohn’s is different, but flare-ups often bring back many of the same symptoms that led to your diagnosis. Common signs include:

• Stomach pain or cramping

• Diarrhea (sometimes with blood or mucus)

• Nausea or vomiting

• Loss of appetite

• Unexplained weight loss

• Fever

• Fatigue or low energy

Some people also notice symptoms outside the digestive system during a flare-up, including:

• Skin rashes or bumps

• Joint pain

• Eye irritation or redness

If your symptoms feel more intense than usual or if they interfere with your daily life, it’s likely that you’re having a flare.

What causes Crohn’s flare-ups?

Doctors don’t always know exactly why a flare-up happens. But several common triggers can cause symptoms to return or get worse:

• Missing medication doses

• Stress or anxiety

• Eating certain foods that don’t agree with your body

• Getting a stomach bug or infection

• Smoking

It’s important to remember that flare-ups are not your fault. Even when you’re doing everything right, like taking your meds, eating carefully, avoiding stress—they can still happen.

How can you prepare for a flare-up?

You may not be able to stop every flare-up, but you can be prepared. Here are some ways to make flare-ups easier to manage when they happen:

1. Know your triggers. Keep track of your symptoms in a journal or app. Write down what you eat, how you feel, and when symptoms show up. Over time, this can help you notice patterns, like certain foods, stress, or sleep changes.

2. Stick to your treatment plan. Even if you’re feeling well, continue taking your Crohn’s medications as prescribed. Stopping or skipping doses can increase your risk of a flare. If you’re struggling with side effects, talk to your doctor before making any changes.

3. Talk to your IBD team. If you notice signs of a flare, don’t wait—reach out to your gastroenterologist or IBD care team. They may recommend tests, a temporary change in medication, or other treatments to calm the inflammation.

4. Adjust your diet during flares. Some people find that certain foods worsen symptoms during a flare. You may feel better eating:

• Low-fiber or soft foods (like white rice, applesauce, bananas, or plain toast)
• Bland foods that are easy on your stomach
• Smaller, more frequent meals

Avoid foods that tend to trigger symptoms, such as spicy meals, high-fat foods, caffeine, or raw vegetables. Everyone is different, so pay attention to what works for your body.

5. Manage stress. Stress doesn’t cause Crohn’s, but it can make symptoms worse. Simple strategies like deep breathing, walking, stretching, or guided meditation can help calm your mind and body.

6. Create a flare-up kit. Having a few helpful items on hand can make life easier during a flare. Consider including:

• Over-the-counter medications your doctor recommends (like antidiarrheals)
• Extra clothes or wipes for emergencies
• Easy-to-digest snacks or electrolyte drinks
• A heating pad for cramping
• Notes about your treatment plan and who to call
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When should you call your doctor?

It’s always okay to reach out when you’re not feeling well. You should call your doctor or IBD care team if:

• Your symptoms last more than a few days

• You see blood in your stool

• You have a high fever or chills

• You can’t keep food or liquids down

• You feel weak, dizzy, or extremely tired

Even if your symptoms don’t seem “that bad,” your provider may be able to help prevent things from getting worse.

You’re not alone. And we’re here to help.

Flare-ups are one of the hardest parts of Crohn’s disease, but they don’t have to take over your life. With the right plan, the right support, and a care team that understands your condition, you can get through flares and stay focused on feeling better.

At the MedStar Health IBD Center, you’ll be cared for by a team of specialists who focus solely on conditions like Crohn’s disease and ulcerative colitis. From physicians and nurse practitioners to physician assistants and nurses, every member of our team brings deep expertise in managing even the most complex cases. We take time to understand your unique situation and offer personalized care, including second opinions when you need them most.

Our IBD team also works closely with specialists across the MedStar Health network, including radiology, colorectal surgery, OB/GYN, pediatric GI, and more. Whether you’re transitioning from pediatric care, managing care during pregnancy, or facing a challenging flare, we’re here to coordinate every step of your journey.

If you're experiencing symptoms or need help managing a flare-up, our Crohn’s disease team is ready to support you.