Patients with enteritis cannot be detected by blood tests. If a patient with acute enteritis has a severe infection, a venous blood test may indicate elevated blood counts, i.e., elevated white blood cells and elevated percentages of neutrophils. Elevated blood counts are only indicative of an infection in the intestines and do not directly indicate the presence of enteritis. The test for enteritis is done through an electronic colonoscopy, which is a type of endoscopy. The bowel is prepared, and then a tube is inserted through the anus to examine the entire large intestine for inflammatory or other specific lesions. If there is abdominal pain and stool changes, and there is a suspicion of intestinal problems, it is necessary to cooperate with a specialist to complete the electronic colonoscopy, and you need to consult a specialist for details.