Among the types of tuberculosis, pulmonary tuberculosis is quite common due to its high rate. However, there are other forms of extrapulmonary tuberculosis that also need to be detected and diagnosed in order to be treated promptly and appropriately, bringing high treatment efficiency.

Peritoneal tuberculosis is a specific inflammatory lesion of the peritoneum, often appearing secondary to other tuberculosis foci. Peritoneal tuberculosis accounts for 6.5% of extrapulmonary tuberculosis, ranking 6th among the most common tuberculosis forms.

Several diagnostic scores have been developed for the diagnosis and prognosis of AFB-negative tuberculosis. Each score has its own advantages and disadvantages as well as different sensitivities and specificities.

Diagnosis of negative AFB tuberculosis will be based on history of exposure, clinical and X-ray suspicion. Thus, the diagnosis of tuberculosis or not will depend largely on the experience of the clinician. Tuberculosis in children is a serious and complicated disease with long-term and complicated treatment, so tuberculosis vaccination is the safest and most effective method of disease prevention.