Will routine blood tests be normal for Crohn's disease?

Written by Huang Gang

Gastroenterology

Updated on April 02, 2025

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If you have Crohn's disease, conducting a routine blood test can be helpful for an auxiliary diagnosis. If the routine blood test for someone with Crohn's disease shows an increase in white blood cells, it may be indicative of a bacterial infection.

Crohn's disease can lead to persistent diarrhea, abdominal pain, and inadequate absorption of nutrients. It may also result in anemia, low red blood cell count, and low hemoglobin levels. Diagnosis can be confirmed by considering the individual's clinical symptoms in conjunction with stool routine tests and colonoscopy examinations.

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Written by Ren Zheng Xin

Gastroenterology

47sec

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Does Crohn's disease have no symptoms?

Crohn's disease typically presents with symptoms such as abdominal pain, diarrhea, intestinal obstruction, complications of nutritional disorders, iridocyclitis, oral ulcers, anemia, and liver diseases. A preliminary diagnosis can be made based on these specific clinical manifestations. X-ray enterography can reveal intestinal lesions. It is important to maintain a reasonable daily routine. During active phases, bed rest should be observed, and a diet high in energy and calories but low in fat should be provided. Treatment involves a combination of medication and surgery. Crohn's disease tends to recur and has a protracted course. (Please take medication under the guidance of a professional physician.)

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Written by Ren Zheng Xin

Gastroenterology

46sec

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Can people with Crohn's disease drink tea?

Crohn's disease is an inflammatory bowel condition. Patients can drink tea and should eat smaller meals more frequently. They should eat more green vegetables, such as carrots, yams, and potatoes, and eat less food high in fat, such as animal fats, fatty meats, and cheese. It is also advisable to eat less raw, cold, and spicy food and to avoid foods that are likely to cause gas, like bean products and onions. In terms of treatment, it is important to follow a regular and complete treatment course. Treatment may involve a combination of medication and surgery. Currently, there is no specific cure for Crohn's disease; treatment mainly focuses on symptomatic and supportive care, as the disease course is prone to prolonged recurrence.

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Written by Ren Zheng Xin

Gastroenterology

43sec

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Crohn's disease fasting diet

Patients with Crohn's disease have inflammatory lesions in their intestines, which decreases their digestive and absorptive functions. Special attention should be paid to their diet. Consuming cold, spicy, and irritating foods, such as peppers, mustard, alcohol, strong tea, and coffee, should be reduced. Foods that cause gas, like leeks and bean products, should also be minimized, as well as carbonated drinks like cola or coffee. It is advisable to eat more vegetables, such as carrots and yams. Nutritional intake should focus on high-nutrient, low-fat foods like lean meats, eggs, and fish. During the treatment period, ample rest is essential.

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Written by Yang Dong

Colorectal Surgery Department

1min 20sec

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Differential Diagnosis between Intestinal Tuberculosis and Crohn's Disease

Intestinal tuberculosis often exhibits symptoms of extraintestinal tuberculosis, whereas Crohn's disease generally does not show signs of extraintestinal tuberculosis. Recurrence of intestinal tuberculosis is not common, whereas Crohn's disease has a longer duration and alternates between remission and relapse. Fistulas, abdominal abscesses, and perianal lesions are relatively rare in intestinal tuberculosis, but Crohn's disease may involve fistulas, abdominal masses, and perianal lesions. Tuberculin skin tests may be positive in patients with intestinal tuberculosis, while in Crohn's disease patients, the test may show a weakly positive result. After antituberculosis treatment, symptoms in patients with intestinal tuberculosis can significantly improve, whereas there is no significant improvement in symptoms in Crohn's disease patients following antituberculosis treatment. Furthermore, histopathological examination in patients with intestinal tuberculosis may reveal Mycobacterium tuberculosis and caseous necrosis. In contrast, Crohn's disease patients show negative results for Mycobacterium tuberculosis in pathologic testing and do not exhibit caseous necrosis.

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Written by Si Li Li

Gastroenterology

49sec

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What is Crohn's disease?

Crohn's disease is a chronic nonspecific inflammatory disease, characterized by segmental and skip lesions, longitudinal ulcers that are relatively deep, and can affect various parts of the digestive tract from the mouth to the anus, primarily occurring near the end of the ileum and adjacent colon. This disease tends to recur repeatedly, and currently, there are no particularly effective treatment methods. At present, the highest incidence rates are in North America and Northern Europe, and the incidence in China is also showing an increasing trend year by year. The main symptoms include abdominal pain, diarrhea, and weight loss. Generally, this disease is difficult to cure and tends to recur throughout a person's life.