ICSI Cycles Using Motile Sperm from Fresh Ejaculate in Cryptozoospermic Patients and the Extremely Severe Oligospermia Patients Yield Similar Reproductive Outcome

Abstract

With recent technological advances in reproductive medicine, the success rates are steadily increasing in in vitro fertilization (IVF) practice. Despite these developments, there are still some controversial issues that have yet to be clarified. One of them is how to approach the cryptozoospermia patients. According to World Health Organization (WHO) “cryptozoospermia” or “virtual azoospermia” refers to the situation when spermatozoa cannot be observed in a fresh sample, instead it could be found after an extended centrifugation followed by meticulous microscopic search (1). Since the number is so few, it is extremely difficult to find, and ORIGINAL RESEARCH Andrology