Beyond Tired: Is Ulcerative Colitis Causing Fatigue?

Before Abby Bales, a physical therapist in New York City, had surgery for ulcerative colitis, she couldn’t make it through the day without taking a nap.
Bales was more than tired. She was experiencing fatigue — an overwhelming sense of exhaustion that is not relieved by rest or sleep and a common symptom of ulcerative colitis.
“When I was flaring, and for the last year before surgery [to remove my colon], the fatigue was absolutely unreal,” Bales recalls.
“Fatigue is not a universal symptom of ulcerative colitis, but it’s a common one,” says William Katkov, MD, a gastroenterologist at Cedars-Sinai Gastroenterology in Santa Monica, California. “The important point is that fatigue should be addressed by both the patient and the treating physician.”
If you’re living with ulcerative colitis and experiencing fatigue, it may feel as if you’ll never get your energy back. But by making some healthy lifestyle changes, it’s possible to start feeling more energized.
Does Ulcerative Colitis Cause Fatigue?
Next up video playing in 10 seconds
What Ulcerative Colitis Fatigue Feels Like
Fatigue is more than just feeling tired, according to Dr. Katkov. “People with ulcerative colitis can experience malaise, a profound kind of fatigue that makes it difficult to carry out normal activities.”
Tina Haupert, a nutrition coach living in the South Shore of Massachusetts who was diagnosed with ulcerative colitis in 2011, agrees. Before addressing her fatigue with dietary changes and exercise, she “pretty much always felt tired.”
What Causes Ulcerative Colitis Fatigue?
- Inflammation In some cases, fatigue is caused by the body’s response to inflammation in the colon, says Katkov. Chemical signals produced during inflammation can act directly on the brain to cause tiredness and deplete energy.
- Poor Sleep Sleep disturbances are a strong predictor of fatigue in people with IBD.
- Anemia A common complication of ulcerative colitis, anemia can result from blood loss, diarrhea, or poor absorption of certain nutrients. People with IBD who develop anemia do not have enough healthy red blood cells to carry sufficient oxygen throughout the body, leading to fatigue and weakness.
- Medications Fatigue can be a side effect of some medications taken for ulcerative colitis. In addition, taking steroids for ulcerative colitis can lead to insomnia and contribute to fatigue. Antidepressants, particularly when they are first prescribed, can cause lethargy but can also help battle any anxiety or depression that comes from living with ulcerative colitis.
- Nutrition Deficiencies Iron, vitamin B12, and folate deficiencies have also been linked to weakness and fatigue.
- Emotional and Psychological Stress Anxiety, depression, and stress are consistently associated with fatigue in people with IBD. It’s not entirely clear, though, whether anxiety, depression, and stress cause fatigue or are a result of fatigue.
9 Tips for Managing Ulcerative Colitis Fatigue
The key to easing fatigue is not to ignore it. “Fatigue is a sign that something requires attention,” Katkov says.
1. Get Ulcerative Colitis Under Control With Treatment
2. Rule Out Other Causes of Fatigue
“Go through the full list of diagnostic possibilities,” Katkov advises. For example, if the ulcerative colitis is in remission but you’re still experiencing fatigue, have your healthcare provider run a blood test to check for anemia or vitamin deficiencies. “You may also want to ask your doctor whether a medication or a recent stressful situation might be triggering your tiredness. Get to the root of the problem and address it,” he adds.
3. Move More
Haupert, who blogs about food and fitness at Carrots ’N’ Cake, suggests trying to do something active every day, even if it’s a short walk around your neighborhood. “Even though I battle fatigue, I always feel better and more energized after some exercise,” she says.
4. Try to Sleep at Least 7 Hours a Night
If tossing and turning at night is leaving you feeling fatigued the next day, talk to your doctor about ways to improve your sleep. Also, consider cutting back on caffeine and removing distracting electronic gadgets from your bedroom.
5. Eat Healthy Diet
Eating well plays a big role in overall health, says Katkov. He suggests eating a healthy, balanced diet that’s high in nutrient-rich foods that don’t aggravate your digestive tract.
6. Plan Ahead
7. Rethink the 9-to-5 Workday
“When fatigue is significant, adjustments in work are appropriate and recommended,” Katkov says. If fatigue is making it hard to get through the workday, consider asking your employer whether they would allow you to work more flexible hours.
8. Try to Reduce Stress
9. Learn Your Fatigue Triggers
Everyone’s different, so try to figure out which habits wear you out and which tend to put a little pep in your step — and act on them accordingly. “Manage your life in a way that works for you,” says Bales, who also works as a running coach. “If that means you work out in the morning and go to bed early in the evening, that’s the way you need to do it.”
The Takeaway
- Ulcerative colitis can cause severe fatigue for many reasons, including disturbed sleep, inflammation, stress, and the side effects of medication.
- Anemia and low levels of certain vitamins can also contribute to fatigue in people with ulcerative colitis.
- Treating the underlying condition may effectively manage ulcerative colitis–related fatigue. But adjusting your schedule to allow for fatigue, eating a nutrient-dense diet, improving sleep hygiene, and increasing exercise may also help you preserve energy levels during flare-ups.
Additional reporting by Ashley Welch.
- Uhlir V et al. Fatigue in Patients With Inflammatory Bowel Disease—Strongly Influenced by Depression and Not Identifiable Through Laboratory Testing: A Cross-Sectional Survey Study. BMC Gastroenterology. August 22, 2023.
- Fatigue. Crohn’s & Colitis UK. March 2025.
- IBD and Fatigue. Crohn’s & Colitis Foundation.
- Davis SP et al. An Integrative Review of Physical Activity in Adults With Inflammatory Bowel Disease. Intestinal Research. January 2022.
- About Sleep. Centers for Disease Control and Prevention. May 15, 2024.
- Osso M et al. Stress and IBD: Breaking the Vicious Cycle. Crohn’s & Colitis Foundation. August 7, 2024.

Yuying Luo, MD
Medical Reviewer
Yuying Luo, MD, is an assistant professor of medicine at Mount Sinai West and Morningside in New York City. She aims to deliver evidence-based, patient-centered, and holistic care for her patients.
Her clinical and research focus includes patients with disorders of gut-brain interaction such as irritable bowel syndrome and functional dyspepsia; patients with lower gastrointestinal motility (constipation) disorders and defecatory and anorectal disorders (such as dyssynergic defecation); and women’s gastrointestinal health.
She graduated from Harvard with a bachelor's degree in molecular and cellular biology and received her MD from the NYU Grossman School of Medicine. She completed her residency in internal medicine at the Icahn School of Medicine at Mount Sinai, where she was also chief resident. She completed her gastroenterology fellowship at Mount Sinai Hospital and was also chief fellow.

Katie Kerns Geer
Author
Katie Kerns Geer is freelance health and lifestyle writer and editor living in Charleston, South Carolina. Before leaving New York City for Charleston, she spent two years as editorial director for a music- and lifestyle-focused YouTube channel of IconicTV. Before that, she was an editor at EverydayHealth.com for five years, two of which she was senior editor. Katie graduated from the University of Georgia’s Grady School of Journalism with a BA in magazine journalism.