
In men's infertility the top two causes are almost universally sperm count and sperm quality. Male infertility can also result from vasectomy, blockage or inflammation of the epididymis (the tube that carries sperm from their origin in the testes to the prostate where they are mixed with seminal fluids), chemotherapy, steroids, hypothyroidism, hemochromatosis, cirrhosis of the liver, and chlamydia. Up to 90 per cent of cases of male infertility, ...