what is crohn’s disease?

Crohn’s disease is a chronic inflammatory bowel disease affecting all its layers.

The most common complications are irreversible changes (narrowing of the intestinal segments, fistulas).
Also, this disease is characterized by numerous extraintestinal lesions.
The prevalence of Crohn’s disease in different countries of the world ranges from 50 to 150 cases per 100,000 population.
The first manifestations of the disease, as a rule, appear at a young age (15-35 years), and it can be both intestinal and extraintestinal manifestations.

Causes of Crohn’s disease:

The causal factor of the disease has not been established.
The provoking role of viruses, bacteria (for example, measles virus, mycobacterium paratuberculosis) is assumed.
The second hypothesis is related to the assumption that some food antigen or non-pathogenic microbial agents can cause an abnormal immune response.

The third hypothesis states that the role of the provocateur in the development of the disease is played by autoantigens (i.e., the body’s proteins) on the patient’s intestinal wall.

what are the symptoms of crohn’s disease?

In Crohn’s disease, the mucous membrane of the colon is inflamed, covered with superficial ulcerations, which causes

  • abdominal pain,
  • impurities of blood and mucus in the feces,
  • diarrhea, often accompanied by pain during defecation.

In addition, there is often a general malaise, loss of appetite, and weight loss.
The presence of Crohn’s disease can be suspected with constant or nocturnal diarrhea, abdominal pain, intestinal obstruction, weight loss, fever, night sweats.

Not only the colon, but also the small intestine, as well as the stomach, esophagus, and even the mucous membrane of the mouth can be affected.
The incidence of fistula in Crohn’s disease is from 20 to 40%.
Often develop narrowing of the intestine with subsequent intestinal obstruction, pseudopolyposis.
Extra-quick manifestations of Crohn’s disease include:

  • skin manifestations,
  • joint lesions,
  • inflammatory eye diseases,
  • diseases of the liver and biliary tract,
  • vasculitis (inflammation of blood vessels),
  • hemostasis disorders and thromboembolic complications,
  • blood diseases,
  • amyloidosis
  • disorders of bone metabolism (osteoporosis – rarefaction of bone tissue).

Crohn’s disease is a recurrent or continuous disease that in 30% of cases gives spontaneous subsidence without treatment.
It happens that patients complain of pain in various parts of the abdomen, bloating, often vomiting.

This is a variant of the disease with the predominant development of small intestinal insufficiency syndrome, which occurs with the defeat of the small intestine.

how is crohn’s disease diagnosed?



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how is crohn’s disease diagnosed?

Diagnosis of Crohn’s disease is based on X-ray and endoscopic examination with biopsy, which reveals an inflammatory lesion of one or more parts of the gastrointestinal tract, usually extending to all layers of the intestinal wall.
Inflammation of the intestinal wall is evidenced by leukocytes in the feces.
With diarrhea (at the beginning of the disease or with relapse), feces are examined for pathogens of intestinal infections, protozoa, helminth eggs, and clostridia.

In the diagnosis of Crohn’s disease, an important role belongs to X-ray studies with contrast (rhinoscopy with double contrast, the study of the passage of barium, intubation enterography – the study of the small intestine with barium, which is injected through a nasogastric probe into the duodenum).

Scintigraphy with labeled leukocytes allows you to distinguish an inflammatory lesion from a non-inflammatory one; it is used in cases where the clinical picture does not correspond to the X-ray data.

Endoscopy of the upper or lower parts of the gastrointestinal tract (if necessary, with a biopsy) allows you to confirm the diagnosis and clarify the localization of the lesion.
With colonoscopy in patients who have undergone surgery, it is possible to assess the condition of anastomoses, the likelihood of relapse, and the effect of treatment carried out after surgery.
A biopsy can confirm the diagnosis of Crohn’s disease, in particular, distinguish it from ulcerative colitis, exclude acute colitis, identify dysplasia or cancer.

How to treat Crohn’s disease?

consult a doctor.


All information provided at is for INFORMATION only and is not a substitute for the consultation, diagnosis, or professional medical care.
If you have a health problem, contact a health care professional immediately.

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