Retrograde ejaculation describes what happens when a man's ejaculate does not expel through his urethra and out of the penis but instead enters the bladder. This results in dry orgasms, meaning ejaculation emits little to no semen during climax.
Though it's relatively uncommon, retrograde ejaculation can impact a man's sexual health if the condition persists.
Mechanics of retrograde ejaculation
To better understand why retrograde ejaculation occurs, it's helpful to learn about how ejaculation normally works.
During a man's orgasm, sperm travels to the urethra through a tube called the vas deferens. Once the sperm reaches the beginning of the urethra, it is mixed with fluid from the seminal vesicles and the prostate to create ejaculate, which travels through the urethra and out of the penis.
When semen makes its way out of the ejaculatory ducts (which travel through the prostate), the muscle at the opening of the bladder