Pancreatic abdomen is a typical manifestation of diffuse peritonitis, mostly secondary to perforation of the gastrointestinal tract, especially perforated gastric and duodenal ulcers, and diffuse peritonitis, which occurs early as a result of peritoneal leakage of digestive juices, and the patient presents with abdominal pain, bloating, nausea, and vomiting, a chemical peritonitis. As the disease evolves, there is bacterial growth and secondary infection that turns into bacterial peritonitis, which is investigated by pressure pain, rebound pain and muscle tension throughout the abdomen. In this case, surgery should be promptly chosen, i.e., dissection to remove digestive or abdominal fluid and repair of the perforation.