“…If infection and peritoneal involvement coexist, defense muscular's reflexes are frequently founded. Patients with infected urachal cysts can present with a wide range of symptoms, most commonly abdominal pain, fever, umbilical discharge, and the feeling of a midline mass (1,11). Related to this case, the patient suffering from abdominal pain which radiated to the perineum, had experienced dysuria and nausea in the previous month.…”