The correct answer is all of the above. In people with Crohn's disease, the immune system mistakenly attacks the digestive tract--the part of your body that food and waste pass through. This leads to swollen and inflamed tissue, most often in the small intestines. But these changes may occur anywhere from the mouth to the end of the rectum.

The correct answer is weight loss. Many people with Crohn's disease lose too much weight, either because of poor appetite or poor absorption of nutrients. The goals of treatment are to reduce inflammation, pain, and diarrhea, and to improve nutrition. Tell your doctor if you're losing weight.

The correct answer is true. No specific diet has been shown to improve Crohn's in everyone. But you can learn to avoid foods that make your symptoms worse. You should eat a well-balanced diet with enough calories, protein, and essential nutrients. Ask your health care provider to help you plan balanced meals.

The correct answer is none of the above. All of these foods can cause gas. Because people with Crohn's are prone to gas, avoiding these foods is a good idea. Talk with your health care provider about which foods are better for people with Crohn's disease.

The correct answer is false. Too much fiber may make your symptoms worse. Try baking or stewing fruits and vegetables if eating them raw bothers you. Eat low-fiber foods if that does not help enough. Ask your doctor about any extra vitamins or mineral supplements you may need.

The correct answer is acetaminophen (Tylenol). It's best to avoid aspirin, ibuprofen (Advil, Motrin), or naproxen (Aleve, Naprosyn). These medicines may make your symptoms worse. If you have Crohn's disease, check with your doctor before taking any over-the-counter medicines.

The correct answer is both. Some medicines reduce inflammation in the intestines, which can relieve pain and diarrhea. Others keep the immune system from attacking the digestive tract. These medicines can have serious side effects, so talk to your doctor about the pros and cons.

The correct answer is true. Biologic therapies are given by injection. Your doctor may recommend biologic therapy if other medicines don't reduce inflammation enough or if you develop certain complications.

The correct answer is false. Some people with Crohn's disease may need surgery to remove a damaged part of the intestine or rectum. This can correct bleeding, blockages, and other serious intestinal problems. But it is not a cure. Discuss the risks and benefits of surgery with your doctor.

The correct answer is true. Smoking can make Crohn's symptoms worse and increase the chances of needing surgery. Quitting smoking can make Crohn's less severe. Ask your doctor about strategies that can help you quit.

The correct answer is all of the above. Stress can make Crohn's symptoms worse, so it's important to find ways to relax. You may find it helpful to join a support group. The Crohn's and Colitis Foundation of America offers support groups throughout the United States.