The quest of finding the perfect spermatozoon

Infertility is a health problem that touches around 15% of couples worldwide and male infertility is the sole cause in half of these cases (1,2). Since the development of assisted reproductive techniques (ART) particularly intracytoplasmic sperm injection (ICSI), it has been a challenge to select the very best spermatozoon to inject into the mature oocyte. This quest has not been easy and up to now there is no diagnostic tool to assure the health of the selected sperm.