Bladder myxoma is a very rare tumor that happens in a benign manner. The mesenchymal origin is typically the supply of these tumors. This tumor is usually diagnosed by the excisional biopsy due to the difficulty of diagnosis preoperatively as different bladder tumors’ types. During this paper, we tend to represent a case report of this terribly rare mesenchymal growth within the urinary bladder which is an unusual location for myxoma tumors to occur. A 48-year-old feminine was hospitalized because of obscure abdominal pain. The patient underwent partial cystectomy, and the histopathology reported the presence of myxoma of urinary bladder.