Mucinous adenocarcinoma of the bladder is rare, occurring in 0.5-2.0% of bladder cancer. Mostpatients present with hematuria, suprapubic pain and dysuria. Presented is a case of a 44 year oldmale with 4 month history of hematuria and terminal dysuria who underwent radicalcystoprostatectomy with histopathology findings of mucinous adenocarcinoma. Upon diagnosis, 25%of patients have distant metastases and 50% have stage IV disease with 50% five years survival rate forstage I-III tumor with no stage IV patients surviving beyond two years. Hence, for this type of cancer,early diagnosis is crucial. Surgery is the mainstay of treatment and is resistant with chemotherapy andradiation. Thus, for patient with confirmed or highly suspicious mucinous adenocarcinoma of thebladder, timely radical resection is warranted.