Sperm stopper is a special urethral toy made for preventing the semen to be ejaculated from the body. Sperm stoppers are among the smallest urethral toys but they can create powerful effects. A sperm stopper typically consists of a cock ring and a small post with a ball on the end. The ring is generally worn as a glans ring, around the penis head. The role of this ring is to keep the sperm stopper in place and to provide additional stimulation during use. The post of the sperm stopper is carefully inserted into the urethra. Some sperm stoppers use two instead of one ball for additional stimulation and a more intense effect. Since the post with the ball doesn’t go too deep into the urethra sperm stoppers are considered good toys for beginners. However, keep in mind that preventing semen to be ejaculated is a more advanced technique better suited for more experienced users.
Since the post of the sperm stopper has a larger ball in the end, it prevents the semen from being expelled from the body during ejaculation. This can create numerous pleasurable sensations for the wearer. In some cases, it can lead to a complete retrograde ejaculation. With retrograde ejaculation, the semen doesn’t go outside the body but it goes back through the urethra all the way into the bladder. This is generally not dangerous since you can expel the semen next time you urinate. However, it is not recommended to practice retrograde ejaculation too often, so this is something you need to keep in mind if you want to use sperm stoppers.