In most cases, no. However, should the varicocele affect testosterone production, it may influence male libido.
Read the full article on: Can pregnancy be achieved with testicular varicocele? ( 72).

Andrea Rodrigo
B.Sc., M.Sc.
Bachelor's Degree in Biotechnology from the Polytechnic University of Valencia. Master's Degree in Biotechnology of Human Assisted Reproduction from the University of Valencia along with the Valencian Infertility Institute (IVI). Postgraduate course in Medical Genetics.