A kidney stone to the bladder will not block the semen. If a kidney stone falls into the bladder, it will not affect ejaculation because the ejaculatory system and the urinary system are two completely different systems, which are mainly used for storing urine, and then the urine in the bladder will be discharged out of the body along with the urethra, while ejaculation is mainly through the vas deferens. If a kidney stone falls into the bladder, it will not block the semen, but if there is a stone in the vas deferens, it may affect the ejaculation. If the kidney stone falls into the bladder, if the stone is relatively small, the main thing is to drink more water, appropriate activities to promote urination, thus promoting the discharge of the stone, if the stone is relatively large, you need to go to the hospital in a timely manner, a clear diagnosis and then cooperate with the doctor to take treatment.