Whether or not there is any effect on sexual function after cystectomy is related to the surgical operation, postoperative care, and hygiene. Usually the operation will affect the sexual function, but in special cases, it may not affect the sexual function. 1. No effect on sexual function: the bladder belongs to the urinary organs, when doing cystectomy, if there is no adhesion or invasion around the bladder, the operation is standardized, the pelvic floor nerve bundles are preserved, and the routine care is done well after the operation, there is no secondary infection as well as complications, there may be no effect on sexual function. 2. Impact on sexual function: there are many nerves and blood vessels in the bladder area, and the bladder and male genital organs are close to each other, when removing the bladder, if the tumor is large and infringes on the surrounding tissues and organs, the nerves and blood vessels may be damaged, which may affect the sexual function of men. After the surgery, you should pay attention to the daily care, can’t go down to the ground too early, need to develop good hygiene habits, keep local cleanliness, so as not to lead to bacterial growth, secondary infection, which may cause inflammation of the reproductive organs, affecting the sexual function, and at the same time, pay attention to the need for regular checkups.