People suffering from Crohn’s often experience loss of appetite and may lose weight as a result.
A feeling
of low energy
and fatigue is also common. Among younger children, Crohn's may delay growth and
development.
Crohn's is a chronic disease, so this means patients will likely experience periods when the
disease flares
up and
causes symptoms, followed by periods of remission when patients may not notices symptoms at
all.
In more severe cases, Crohn’s can lead to tears (fissures) in the lining of the anus, which may
cause pain
and bleeding,
especially during bowel movements. Inflammation may also cause a fistula to develop. A fistula
is a tunnel
that leads
from one loop of intestine to another, or that connects the intestine to the bladder, vagina, or
skin. This
is a serious
condition that requires immediate medical attention.
The symptoms you or your loved one experience may depend on which part of the GI tract is
affected. Read
more about the
Types of Crohn's Disease and Associated Symptoms.
Crohn’s disease may affect as many as 700,000 Americans. Men and Women are equally likely to be affected, and while the disease can occur at any age, Crohn's is more prevalent among adolescents and young adults between the ages of 15 and 35.
The causes of Crohn’s Disease are not well understood. Diet and stress may aggravate Crohn’s
Disease, but
they do not
cause the disease on their own. Recent research suggests hereditary, genetics, and/or
environmental factors
contribute
to the development of Crohn’s Disease.
The GI tract normally contains harmless bacteria, many of which aid in digestion. The immune
system usually
attacks and
kills foreign invaders, such as bacteria, viruses, fungi, and other microorganisms. Under normal
circumstances, the
harmless bacteria in the intestines are protected from such an attack. In people with IBD, these
bacteria
are mistaken
for harmful invaders and the immune system mounts a response. Cells travel out of the blood to
the
intestines and
produce inflammation (a normal immune system response). However, the inflammation does not
subside, leading
to chronic
inflammation, ulceration, thickening of the intestinal wall, and eventually causing patient
symptoms.
Crohn’s tends to run in families, so if you or a close relative have the disease, your family
members have a
significantly increased chance of developing Crohn’s. Studies have shown that 5% to 20% of
affected
individuals have a
first – degree relative (parents, child, or sibling) with one of the diseases. The risk is
greater with
Crohn’s disease
than ulcerative colitis. The risk is also substantially higher when both parents have IBD. The
disease is
most common
among people of eastern European backgrounds, including Jews of European descent. In recent
years, an
increasing number
of cases have been reported among African American populations.
The environment in which you live also appears to play a role. Crohn’s is more common in
developed countries
rather than
undeveloped countries, in urban rather than rural areas, and in northern rather than southern
climates.
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