The exact cause of IBD isn’t known, but doctors know that certain factors may aggravate but not cause the disease. Being aware of your risk for this disease can help you recognize it and get a diagnosis and treatment in a timely manner.  Most people are diagnosed with IBD before the age of 30, but others may not develop the disease until they are in their 50s or 60s.  Caucasians, especially Ashkenazi Jews, are at the highest risk of IBD, but it can occur in any race.  If a close relative, such as a parent or sibling, has IBD you are at higher risk for developing the disease.  Cigarette smoking significantly increases your risk of developing Crohn’s Disease.  Using certain nonsteroidal anti-inflammatory medications (NSAIDS), such as ibuprofen, naproxen sodium, and diclofenac sodium, can increase your risk of developing IBD or worsen the disease if you already have it.  Environmental factors, such as living in an urban area or northern climates and eating a diet high in fat and refined foods, may increase your risk of developing IBD. Although Crohn’s Disease and ulcerative colitis may have similar symptoms, they still differ slightly. Recognizing the symptoms of Crohn’s Disease can help you get a diagnosis from your doctor and take steps to manage the disease in your everyday life. Not all patients have severe symptoms, so it is important to be aware of the various ways that Crohn's disease can present.  You may experience persistent diarrhea, cramping, abdominal pain, fever, and occasional blood in your stool.  Loss of appetite and weight loss may also occur with Crohn’s Disease. It can also affect your joints, eyes, skin, and liver.  The most common complication of Crohn’s Disease is intestinal blockage as a result of swelling and scar tissue. Symptoms of blockage, such as cramping pain, vomiting, and bloating, may be present. You may also develop fistulas as a result of sores or ulcers in the intestinal tract.  People with Crohn’s Disease are at a higher risk of colon cancer and need to be screened more...

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Write a summary of the previous text in Vietnamese:
Nhận biết nguy cơ viêm ruột. Nhận biết triệu chứng bệnh Crohn. Nhận biết triệu chứng viêm loét đại tràng. Quan sát chặt chẽ chức năng cơ thể. Đánh giá mức độ thèm ăn và cân nặng. Chú ý khi bị đau và nhức. Kiểm tra da.