What Is Ulcerative Colitis? Ulcerative colitis is a condition that causes the inner lining of the large intestine (colon) to get red and swollen with sores called ulcers. It's a chronic condition, which means it lasts a long time or constantly comes and goes. Ulcerative colitis is a type of inflammatory bowel disease (IBD) that happens only in the colon. What Are the Signs & Symptoms of Ulcerative Colitis? The most common symptoms of ulcerative colitis are cramping belly pain and diarrhea. Other symptoms include: blood in the toilet, on toilet paper, or in the stool (poop) urgent need to poop a fever low energy weight loss Ulcerative coliits can cause other problems, such as rashes, eye problems, joint pain and arthritis, and liver disease. Kids with ulcerative colitis may not grow well as well as other kids their age and puberty may happen later than normal. What Causes Ulcerative Colitis? The exact cause of ulcerative colitis is not clear. It is probably a combination of genetics, the immune system, and something in the environment that causes inflammation in the gastrointestinal tract. Diet and stress may make symptoms worse, but probably don't cause ulcerative colitis. Who Gets Ulcerative Colitis? Ulcerative colitis tends to run in families. But not everyone with ulcerative colitis has a family history of BD. Ulcerative colitis can happen at any age, but is usually diagnosed in teens and young adults. How Is Ulcerative Colitis Diagnosed? Ulcerative colitis is diagnosed with a combination of blood tests, stool tests, and X-rays. Medical imaging tests, such as CT scans and MRIs, might be done too. The doctor will check your stool for blood, and might look at your colon with an instrument called an endoscope, a long, thin tube attached to a TV monitor. In this procedure, called a colonoscopy, the tube is inserted through the anus to let the doctor see inflammation, bleeding, or ulcers on the wall of the colon. During the procedure, the doctor might do a biopsy (taking small tissue samples for further testing). How Is Ulcerative Colitis Treated? Ulcerative colitis is treated with medicines and sometimes surgery. The goal of treatment is to relieve symptoms, prevent other problems, and avoid flare-ups. Your doctor may recommend: anti-inflammatory drugs to decrease the inflammation immunosuppressive agents to prevent the immune system from causing further inflammation biologic agents to block proteins that cause inflammation Because some medicines make it harder to fight infections, it's important that you be tested for tuberculosis and have all the recommended vaccines before starting treatment. Surgery may be necessary if: the bowel develops a hole the bowel widens and swells up (called toxic megacolon) the bleeding can't be stopped symptoms don't respond to treatment What Else Should I Know About Ulcerative Colitis? Poor appetite, diarrhea, and poor digestion of nutrients can make it hard for teens with ulcerative colitis to get the calories and nutrients the body needs. Be sure to eat a variety of foods, get plenty of fluids, and avoid foods that make your symptoms worse. Some teens may need supplements, like calcium or vitamin D. Someone who isn't growing well may need other nutrition support. Looking Ahead Although it can be challenging to deal with the symptoms of ulcerative colitis, many people find that they're able to feel well and have few symptoms for long periods of time. Talk to your doctor about ways that you can feel better during the times you have flares. If you feel sad or anxious about your symptoms, it may also help to talk to a therapist or other mental health professional. As you get older, you can take on more responsibility for managing your health care. Getting treatment for ulcerative colitis, managing your symptoms, and keeping a positive attitude can help get you back on track. The Crohn's and Colitis Foundation is a good resource for more information and support. Back to Articles Related Articles Inflammatory Bowel Disease Inflammatory bowel disease is an ongoing illness caused by an inflammation of the intestines. There are two kinds of IBD: Crohn's disease and ulcerative colitis. Read More Crohn's Disease Crohn's disease is a condition that causes parts of the intestine (bowel) to get red and swollen. It can be challenging to deal with, but many teens find that they're able to feel well and have few symptoms for long periods of time. Read More Dealing With a Health Condition If you suffer from a chronic illness, you know it can be anything but fun. But you can become better informed and more involved in your care. Here are tips to help you deal. Read More Celiac Disease People who have celiac disease, a disorder that makes their bodies react to gluten, can't eat certain kinds of foods. Find out more - including what foods are safe and where to find them. Read More Digestive System Most people think digestion begins when you first put food in your mouth. But the digestive process actually starts even before the food hits your taste buds. Read More Irritable Bowel Syndrome Some teens get stomachaches and diarrhea often. Read about irritable bowel syndrome (IBS), a common intestinal disorder that affects the colon. Read More Note: All information is for educational purposes only. For specific medical advice, diagnoses, and treatment, consult your doctor. © 1995-2021 KidsHealth®. All rights reserved. Images provided by The Nemours Foundation, iStock, Getty Images, Veer, Shutterstock, and Clipart.com.