So what are causes of sperm leakage? and what are steps to prevent sperm leakage?. First of all you must understand that sperm leakage after sex affects all couples. Sperm or semen back flow after sexual intercourse is a completely natural process. Rather than sperm, it is the semen that backflows, while the sperm being a motile cell attaches to the vaginal wall and continues to swim up towards the egg. Sperm leakage medicines are a hoax so please do not fall for such treatment scams that claim to stop …Read more