Not literally, but in a way yes. Actually, blood brings oxygen and nutrition to the testicles. In fact, everything in our body (both in males and females) gets oxygen and nutrients from blood. So, while blood should not present in the semen, it is responsible for the sperm production process.
Is sperm made out of blood?
By Zaira Salvador (embryologist).
Last Update: 11/02/2017
Bachelor's Degree in Biotechnology from the Technical University of Valencia (UPV). Biotechnology Degree from the National University of Ireland en Galway (NUIG) and embryologist specializing in Assisted Reproduction, with a Master's Degree in Biotechnology of Human Reproduction from the University of Valencia (UV) and the Valencian Infertility Institute (IVI)