About Ulcerative
Colitis
Ulcerative colitis is a disease that causes inflammation and
sores, called ulcers, in the lining of the large intestine.
The inflammation usually occurs in the rectum and lower part
of the colon, but it may affect the entire colon. Ulcerative
colitis rarely affects the small intestine except for the end
section, called the terminal ileum. Ulcerative colitis may also
be called colitis or proctitis.
The inflammation makes the colon empty frequently, causing
diarrhea. Ulcers form in places where the inflammation has
killed the cells lining the colon; the ulcers bleed and produce
pus.
Ulcerative colitis is an inflammatory bowel disease (IBD),
the general name for diseases that cause inflammation in the
small intestine and colon. Ulcerative colitis can be difficult
to diagnose because its symptoms are similar to other
intestinal disorders.
Causes
Theories about what causes ulcerative colitis abound, but
none have been proven. The most popular theory is that the
body's immune system reacts to a virus or a bacterium by
causing ongoing inflammation in the intestinal wall.
People with ulcerative colitis have abnormalities of the
immune system, but doctors do not know whether these
abnormalities are a cause or a result of the disease.
Ulcerative colitis is not caused by emotional distress or
sensitivity to certain foods or food products, but these
factors may trigger symptoms in some people.
Symptoms
The most common symptoms of ulcerative colitis are abdominal
pain and bloody diarrhea. Patients also may experience
- fatigue
- weight loss
- loss of appetite
- rectal bleeding
- loss of body fluids and nutrients
About half of patients have mild symptoms. Others suffer
frequent fever, bloody diarrhea, nausea, and severe abdominal
cramps.
Ulcerative colitis may also cause problems such as
arthritis, inflammation of the eye, liver disease (hepatitis,
cirrhosis, and primary sclerosing cholangitis), osteoporosis,
skin rashes, and anemia. No one knows for sure why problems
occur outside the colon.
Diagnosis
A thorough physical exam and a series of tests may be
required to diagnose ulcerative colitis.
Blood tests may be done to check for anemia, which could
indicate bleeding in the colon or rectum. Blood tests may also
uncover a high white blood cell count, which is a sign of
inflammation somewhere in the body. By testing a stool sample,
the doctor can detect bleeding or infection in the colon or
rectum.
Treatment
Treatment for ulcerative colitis depends on the seriousness
of the disease. Most people are treated with medication. In
severe cases, a patient may need surgery to remove the diseased
colon. Surgery is the only cure for ulcerative colitis.
Some people whose symptoms are triggered by certain foods
are able to control the symptoms by avoiding foods that upset
their intestines, like highly seasoned foods, raw fruits and
vegetables, or milk sugar (lactose).
Each person may experience ulcerative colitis differently,
so treatment is adjusted for each individual. Emotional and
psychological support is important.
Drug Therapy
The goal of therapy is to induce and maintain remission, and
to improve the quality of life for people with ulcerative
colitis. Several types of drugs are available.
Hospitalization
Occasionally, symptoms are severe enough that the person
must be hospitalized. For example, a person may have severe
bleeding or severe diarrhea that causes dehydration. In such
cases the doctor will try to stop diarrhea and loss of blood,
fluids, and mineral salts. The patient may need a special diet,
feeding through a vein, medications, or sometimes surgery.
Surgery
About 25 percent to 40 percent of ulcerative colitis
patients must eventually have their colons removed because of
massive bleeding, severe illness, rupture of the colon, or risk
of cancer.
Sometimes the doctor will recommend removing the colon if
medical treatment fails or if the side effects of
corticosteroids or other drugs threaten the patient's
health.
Reference for Ulcerative Colitis(IBD)
Article
National Institutes of Health
Health
Related Websites
The National Cancer
Institute
The National Eye
Institute
The National Heart, Lung,
and Blood Institute
National Institute on
Aging
National Institute of
Allergy and Infectious Diseases
National Institute of
Arthritis and Musculoskeletal and Skin Diseases
National Institute of
Diabetes and Digestive and Kidney Diseases
National Institute on Drug
Abuse
National Institute of Mental
Health
National Institute of
Neurological Disorders and Stroke
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