If the cause of hematuria is clear and there is no lesion that requires cystoscopy, then generally do not need to check again, if the cause of hematuria is unknown, then cystoscopy is needed. If the cause of hematuria is clear, such as hematuria due to infection, symptoms improve after regular anti-infection treatment, urine color changes to light yellow, then generally do not need cystoscopy. In some cases of hematuria caused by specific diseases, cystoscopy is still needed even if the symptoms improve after treatment. For example, if hematuria is caused by a bladder tumor, the symptoms may improve after treatment such as stopping the bleeding, but cystoscopy is still needed to determine the size and location of the tumor, and to take a specimen for further examination. If the cause of hematuria is unknown, although the color returns to pale yellow, cystoscopy should be performed to determine the source and cause of hematuria for further treatment. Different options are available for different conditions, so please go to a regular hospital and follow your physician’s advice.