Whether low-grade non-invasive uroepithelial carcinoma is serious or not needs to be determined according to the actual situation, because each person has different severity of the disease, different physical qualities, and large individual differences, and it is impossible to give an accurate conclusion. Whether low grade non-invasive uroepithelial carcinoma is serious or not needs to be considered in combination with many factors. For example, whether the metastasis and spread of low-grade non-invasive uroepithelial carcinoma is serious, whether there is metastasis to the relatively high-grade urinary tract, whether there is a tendency for the cancer to develop to the bladder, the specific degree of development to the bladder, the size of the cancer volume, etc., as well as physical fitness, age, etc., are all within the scope of examination, and therefore, it is not possible to give an accurate conclusion. If there is low-grade non-invasive uroepithelial cancer, one should go to the hospital for examination immediately, actively cooperate with the doctor’s treatment after finding out the situation, and carry out the corresponding treatment under the doctor’s guidance, and do not indiscriminately use medicines, so as not to cause delay of the disease.