Silvia Azaña, embryologist at inviTRA, explain in this video whether a decrease in ejaculate volume is serious:
A reduction in the volume of the ejaculate might stem from ejaculating often with only a brief interval of sexual abstinence beforehand.
Should that not be the reason and you observe a significant drop in the volume of ejaculate, seeking advice from a specialist is highly recommended.
It is possible that some damage has occurred within the ejaculatory ducts or to the glands responsible for producing the semen, or simply that the seminal volume has been reduced without implying these alterations.
Read the full article on: What Is the Normal Semen Volume in Males? ( 85).

Silvia Azaña Gutiérrez
B.Sc., M.Sc.
Graduate in Health Biology from the University of Alcalá and specialized in Clinical Genetics from the same university. Master in Assisted Reproduction by the University of Valencia in collaboration with IVI clinics.
License: 3435-CV