There are two parts to semen: spermatozoa and the seminal fluid that the spermatozoa use as their means of travel.
Seminal fluid has traditionally been attributed the role of a simple means of transportation. However, many years ago, it started to become clear that exposure to seminal fluid with no spermatozoa content improved in vitro fertilisation results and the results in couples experiencing recurrent pregnancy loss.
Increased proof of this improvement in results has emerged over the last few months, as indicated in the recent scientific publications referenced at the end of this post. These pieces of scientific work confirm early observations and explain the reasons why.