Complications
The outlook for Crohn's disease varies widely. Crohn's disease can range from being benign (such as when limited Crohn's disease occurs only around the anus in older people) or it can be very severe. At the extreme end, some patients may experience only one episode and others suffer continuously. Although recurrences tend to be the norm, disease-free periods can last for years or decades in some patients. Although Crohn's disease cannot be cured even with surgery, treatments are now available that can offer significant help to most patients. Crohn's disease is rarely a direct cause of death, and most people can live a normal lifespan with this condition.
Mild Crohn's Disease. The fewer bowel movements, the milder the disease. In mild disease, abdominal pain is absent or minimal. The patient has a sense of well-being that is normal or close to normal. There are few, if any, complications outside the intestinal tract. The doctor does not detect any mass when pressing the abdomen. The red blood cell count is normal or close to normal, and the patient is not underweight.
Severe Crohn's Disease. In severe Crohn's disease, the patient has bowel movements frequent enough to require opiates or other potent anti-diarrhea medication. Abdominal pain is severe and usually located in the lower right quadrant of the abdomen. (The location of the pain might not indicate the site of the actual problem, a phenomenon known as referred pain.) The red blood cell count is low. The patient has a poor sense of well-being and experiences complications that may include weight loss, joint pain, inflammation in the eyes, reddened or ulcerated skin, fistulas, abscesses, and fever. The surgical and medical treatments of Crohn's disease, as with ulcerative colitis, have complications of their own that can be severe.
Complications in the Intestine
Malabsorption and malnutrition. Malabsorption is the inability of the intestines to absorb nutrients. In IBD, this occurs as a result of bleeding and diarrhea, as a side effect from some of the medications, and as a result of surgery. Malnutrition usually develops slowly and tends to become severe, with multiple nutritional deficiencies. It is very common, ranging from 25 - 80% of patients with Crohn's disease.
Ulcer, Fistulas, and Abscesses. Between 30 - 40% of patients with Crohn's disease experience complications around the anal area from inflammation. Fistulas (channels beneath the skin) frequently develop from the deep ulcers that can form with Crohn's. If fistulas develop between the loops of the small and large intestines, they can interfere with absorption of nutrients. They often form pockets of infection or abscesses, which may become life threatening without treatment.
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