Crohn's disease (CD) and ulcerative colitis (UC) have been known to physicians for decades. Unfortunately, so far there are many unknowns regarding CD and UC. There are numerous descriptions of clinical cases, different locations of disease symptoms, and descriptions of symptoms located both in the gastrointestinal tract and symptoms accompanying the disease.All this information sheds light on the etiology of inflammatory bowel disease (IBD) do not completely resolve their complexity. An analysis of the literature presented in the work indicates that the characteristics of diseases are often unambiguous. This contributes to the fact that IBD diagnostics are often difficult and create many problems [1][2][3]. Despite many years of research on inflammatory bowel diseases, they are still of interest to scientists today. Nonspecific inflammatory bowel disease is a term referring to chronic and recurrent gastrointestinal disease. A number of clinical symptoms distinguish between CD and UC, whose clinical picture is relatively diverse. However, in many cases the diagnosis is not straightforward, which contributes to the interest of researchers worldwide in the disorders under discussion. The inflammatory changes in the course of UC are continuous and limited to the mucous membrane of the large intestine. UC-related inflammation usually involves the mucosa and submucosa usually begins in the rectum and spread proximal to the colon. The affected tissue is swollen, with the presence of erosions and ulcers, which lead to spontaneous bleeding.In most cases, UC initially occurs smoothly, with worsening symptoms within a few weeks. It happens, however, that the disease begins suddenly and goes very quickly. In such cases, due to the lack of the effect of conservative treatment, surgical treatment is already implemented in the early stages of the disease. However, in most cases, after the first shot of the disease, it goes into remission, after which it becomes more severe again. Such continuous conditions of illness and remission may last even several dozen years [1,2]. In the case of CD, the condition most often includes the small intestine and caecum, which accounts for 40% of cases, only small intestine (30% of patients) and only large intestine (25% of cases). In situations where only the large intestine is covered, two forms of the disease are recognized. The first one concerns about two thirds of cases and consists in taking the entire length of the large intestine with the disease state, while the second involves the occurrence of staple