In a small 2003 study , researchers documented a link between ejaculation and changes in serum testosterone levels. Among the 28 volunteers, testosterone levels peaked on the seventh day of abstinence. A small 2001 study found elevated testosterone levels in participants who abstained from masturbation for three weeks.

Is it healthy to retain sperm?

There is not much scientific evidence to suggest that it is either healthy or unhealthy to hold in semen. If a person does not ejaculate, the body will break the semen down and reabsorb it into the body.

What happens if you hold in your sperm?

No evidence suggests blocking sperm can cause harm or negative side effects. Unejaculated sperm is not harmful to the body and does not build up. The body reabsorbs sperm that does not leave through ejaculation. This has no side effects on sex drive or fertility.