The clinical manifestations and morphological changes of 6 cases of papillary cystitis were analyzed retrospectively. Among the 6 cases, 2 were male and 4 were female, the age at diagnosis was(57.3±10.19) years. Th e locations of papillary cystitis were triangle area(n=5), lateral wall(n=1). The diameter range was 0.4–1.5 cm. The morphological change was inflamed background, broad-based fronds, finger like process, interstitial fibrosis or edema, no epithelial atypia. Papillary cystitis is a rare type of inflammation of the bladder with characteristic morphological changes.it is easy be misdiagnosed as papillary urothelial neoplasms.