The first is hematuria, which can occur when there is an occupied bladder, often with unexplained hematuria, often manifesting as hematuria with the naked eye throughout the whole process, and without any pain, only when the occupied volume increases further, there may be pain in the later stages, and in the early stages there is usually no pain. Second, the symptoms of frequent and urgent urination, when the bladder is occupied, it causes continuous bladder irritation, so there will be frequent urination and urgent urination, at the same time, the effective capacity of the bladder decreases due to the occupation, so the bladder storage volume becomes relatively small, and the phenomenon of frequent urination can occur. Third, the symptoms of pain in the small abdomen, often seen after a long time of occupancy, can appear to have pain, occupancy caused by local tissue destruction, occupancy itself necrosis phenomenon, can appear chronic pain, mainly in the small abdomen hidden pain discomfort, dull pain, etc.. Fourth, other system symptoms, if the occupancy is not effectively treated for a long time, it may lead to back pain, anemia and other manifestations, which is due to the increase in the size of the occupancy and compression of the ureter, resulting in the accumulation of water in the kidney, which can appear back pain, or excessive bleeding, resulting in anemia and other manifestations.