Yes, situations that increase anxiety or stress levels can alter the hormones that regulate sperm production, causing zero sperm count. However, these are situations of temporary azoospermia that allow the affected man to recover fertility after returning to normality. In other words, as soon as increased stress levels decrease and the man is more relaxed, sperm production starts anew and azoospermia disappears.
Read the full article on: What Diseases Are Associated with Azoospermia? ( 41).
Read the full article on: How does stress affect infertility? Causes and effects ( 84).

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.