Abdominal tuberculosis is a condition caused by Mycobacterium tuberculosis infection of the peritoneum or abdominal organs. The most common site of involvement is the ileocaecal region of the small intestine and large intestine junction. Symptoms vary depending on the specific site of infection but can include abdominal pain, fever, weight loss, ascites, or the presence of a palpable abdominal mass. Diagnosis is supported by ascitic fluid analysis, imaging, endoscopy, and biopsy showing caseating granulomas. Treatment involves a standard combination of antitubercular drugs including isoniazid, rifampin, pyrazinamide, and ethambutol.